He is really good, he changes the way UW teaches OS class

The only CS class that doing the projects actually helps for studying for the exam

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Amazing teaching and great guidance

he is my favorite prof. very very cool

Good professor. The best CS Professor I've had, and one of the best overall.

I find myself lucky to be in his class!

One of my favorite professors ever.

One of the best professors I've ever had in anything!

Hilarious and great at teaching. The material is sometimes a bit dense, but he is very clear, provides great notes, and is just interesting to listen to. The projects and exams can be very hard if you fall behind (if you're not good at C programming, you will have to learn, but optional discussions help a lot).

Awesome professor. Very engaging and extremely knowledgeable about the topic. Definitely the best CS professor I've had on campus, and quite possibly the best professor.

One of the best professors on campus! Keeps class interesting while making sure you actually learn the material, and is quite entertaining. Very helpful both in and outside of class.

Greatest CS professor ever, he is funny, easy to talk to, knows his stuff and works just as hard as you do during the semester. Tries (and succeeds) to make exams interestingly themed...

Best CS professor. The favorite CS professor of everyone I have talked with. The material I imagine could be challenging, but he presents everything extremely well and is very helpful and a nice guy.

Going to repeat what others have said: best professor in the dept. hands down, and would be a serious contestant for best teacher on campus. Clear, concise, engaging lecturer, very helpful in office hours, and always ready with a joke. The projects and exams are difficult, but never overwhelming. Take this class!

Mentor...Master...Magic

Great teacher, wrote his own book for the class and had it online for us to use for free. Very helpful when you have problems.

Favorite CS professor. You need to do the work (which can take a lot of work), but he's a fair grader and not too nit-picky.

Would recommend to everyone. Not easy but you will learn a ton!

Favorite CS professor i've had. His lectures are clear and useful and the programming assignments are very helpful to learn the material. He is also writing the course textbook, which is clear and very helpful and will always be available free

One of the best professors I've had! Extremely knowledgable, clearly passionate about the topics at hand, and truly wants students to understand the material and succeed

Okay, everyone knows Remzi is the best. But taking Starting a Software Company with him is a different experience from OS. Phenomenal teacher who more or less, demands you start thinking outside the box to be successful. Highly, highly recommend.

One of the university's best professors.

Great professor!

Great prof!

Hands down best professor in the CS department. Maybe best at the University. Had to change the way the COW award was given because he was winning it too much. Speaks very clearly and makes sure everyone knows whats going on before advancing onto new topics. I recommend every CS major take at least one class with Remzi here.

He has pretty much perfected the art of lecturing.

If you take a CS course in Madison, you can't miss his class. Excellent lectures and great jokes, great projects and loose due times, great TAs and --- great & free textbook! His delivery is just fantastic that you will want to come to class for a two hour per week and refresh your mind. Awesome! Simply awesome!

Great & funny lecturer, he is personable with a lecture of hundreds of people. Remzi is well prepared for any type of learner, he has great lectures, he puts those online, and he (with his wife) wrote the textbook

One of the best professors on campus. His lectures are very engaging and funny. This actually makes you want to go to class for a change. He's also reasonable and understanding with deadlines. I highly recommend taking a class with him. Also, his textbook is probably the best written CS textbook I've ever seen.

Best professor I've ever had. He's hilarious, made the 3 hour lectures go by fast. Records lecture, so you can watch on Youtube later. Doesn't make you buy the textbook, he provides you with the pages, also he wrote the textbook. Hands down the best professor at UW-Madison

This man is amazing, every lecture was a treat, and I had 3 hour lectures, literal god of a teacher. His class is hard, its not easy at all but its all worth it, if you get the chance to have Professor Remzi, DO NOT MISS THE OPPURUTUNITY.

Just the best professor I had in all my classes.

Fantastic Professor. Do not miss the opportunity to take OS with Remzi. Also Remzi has the best humor. He has me chuckling all the time.

Remzi's isn't necessarily an easy professor, and there will be some projects and test that will leave you frustrated, but I can safely say he's the best teacher I've had the pleasure of learning under. During this class I figured out that I don't even really like operating systems, but still I somehow enjoyed learning and listening to his lectures.

Remzi is hands down the most entertaining and informative lecturer I have ever had. I would definitely recommend taking a course with him if you get the chance.

By far the best lecturer I've had at Madison, and by far the best CS course . A ton of work, but all interesting. More than fair as far as regrades on projects or tests, as well as extensions on nearly every project's deadline. 100% take a class with him if you get the chance. Read OSTEP if you take this course, it will help a ton.

No idea how my fellow classmates are giving Remzi such bad reviews this semester. By far the best CS professor and lecturer I have had at UW. Yes there is some vagueness in the overall course grade but you can easily gauge how you're doing. Also the fact that he gave us an extension on almost EVERY project, something unheard of in CS. Take him.

Hands down one of the best professors I've had. Like most others have mentioned, Remzi gave us generous extensions on almost all projects. Although it does take a great deal of effort to do the projects, you should be fine as long as you don't procrastinate. Don't miss your opportunity to take Remzi's class!

Remzi made one of the hardest CS course (presumably according to my advisors and peers) the easiest CS course I have taken. He explained the concepts so well that you don't even need to read the textbook. He wrote the textbook and is published for free (and is being used by 100+ unis across the GLOBE). He's generous in scoring and listen to student

This class has a lot of stuff, and it's definitely not easy. But I really enjoy prof Remzi's lectures and his advices, he is so far from being 1/5. Maybe he can do a better job this semester, but he is still the best professor I met.

Remzi is the best professor I've had at UW. His sense of humor may not click with everyone, but I personally found his lectures both entertaining and informative. The book (Google "OSTEP") is readable, expands upon his lectures, and more than sufficiently covers the content on the exams. A solid understanding of C is important for the projects.

Most 1/5 ratings here are simply not true. He is very accessible outside class and cares about students. When I reached out for a time collision with his office hour, he immediately opened another one. Very accessible through email as well. Reply to emails incredibly fast. Also the best lecturer I have had at UW, made hard content very accessible

Remzi is the guy. The best. Definitely a professor I'll remember having and enjoying long after college. Gave great lectures. The only textbook that I've ever looked forward to reading and learned a lot from (he also wrote it, and it's free). So happy I took the class with him.

Ignore all negative reviews. OS requires a lot of self learning, that's the nature of 500 level course. Remzi is really inspirational in class, and really tries to test your code in projects. You do become a much better programmer through his class. And he's funny too. I don't understand why people are mad when they don't understand the first time.

Amazing professor. Take his class if you ever get a chance.

Remzi is a fantastic lecturer. I could feel the mental knots in my brain (of half-baked understanding and conceptual misconceptions) untangling every lecture. This was by far the most valuable CS course i've taken, and Remzi is extremely accommodating and helpful, and maintains an amazing class atmosphere to keep his students engaged.

Don't ever pass up a chance to take up a class with Remzi, no matter the subject. Genuinely cares about teaching, and sets challenging yet doable assignments which really clear up the material. The class probably isn't suitable for those who aren't willing/able to put the work in, as obvious in some of the other reviews.

One of the best professors I have met till now. An absolute gem. He knows his subject, is an excellent teacher and never lets the class get boring. He clears all doubts very well and has a very good attitude. There is everything to like.

One of the best prof's in the department. Lectures were interesting and fun. Gave extensions for the home works.

The BEST cs prof I've ever had! He has such a charming character and his lectures are amazing and intuitive, he makes OS actually fun to learn. However, you do have to put in the work. He also makes changes to teaching schedules and homework deadlines to our benefit. I personally haven't read the textbook and I got an A. Definitely recommend!

Great prof who is really good at condensing material into the lectures along side live examples and chances to figure things out on your own. He also wrote the world-standard textbook for the class. Hardest part are the projects, but if you start as soon as they are announced, you will get 100 on them. Also the textbook is nice, but not necessary.

Professor Remzi is by far one of the best CS professors I have had. Not only is he very skill and knowledgeable about CS and his courses in general he also wants his students to learn and cares for them. Remzi was very accommodating with a personal situation while I was in this course and he genuinely wanted to see how he could help. Hes the best

Such a great Lecturer, one of best professor in the cs department

I legit don't understand Remzi's negative reviews. OS is a tough class with complex topics and long projects. But this man is hilarious with engaging lectures. He and his wife literally wrote the OS book. Only complaint is that he didn't keep his TAs on top of releasing projects (and their tests) and giving grades back on time. Get Remzi for OS.

OS is going to be a tough course no matter who you take it with, but Remzi knows the material like the back of his hand. His lectures are really fun and the textbook his wife and him wrote is very easy to understand. His office hours were accessible and he was able to answer any question I had easily and kindly. I highly recommend him as a prof.

Remzi is an amazing lecturer who cares for his students and has an incredible knack of explaining complex topics in a way that makes them so easy to understand. If you can take 537 with him, take it.

Amazing Lecture! Amazing, Professor! Amazing Wisdom! It's such an excellent course that I have to say it three times: amazing! If you take this course, you will know what I am talking about!