Honestly, I enjoyed having Kahn as a professor. Yes, his courses are very challenging and yes, he'll push you to your limit but he cares about his students and about learning. Work hard as he likes this and is very approachable! Don't listen to the negative hype and be your own judge.

He expects a lot from you. Hard as all get out, but he expects you to do well which is refreshing and inspiring. Put in the work, meet with him in his office, go to class and be prepared. One of my favorite professors even though he was tough. Half our class dropped by the midterm, but he teaches you how to learn, which is really why you're there.

Only take Kahn if you need to. He relies on online lecture videos from Gainer and other online sources to teach the class. He expects you to learn all of the information before coming to class. Quizzes and tests are hard. He gives you too many resources expecting you to use all of them. Upside is that an "A" starts in the 70s.

He enjoys torturing his students and making his students' life miserable. DO NOT TAKE if you are not going to be a professional chemist!! The quiz questions are something you CANNOT find in your textbook. And he expects you to have 100 hours every week to study for his class and it's IMPOSSIBLE.

He is obviously one of the most intelligent people I've ever met. He was relearning organic chemistry from the same textbook the students used, and he found a couple of errors in the book. His vitamin pop quizzes are nearly impossible. The exams are overwhelmingly difficult, thus my 54% turned out to be a B+.

He hadn't taught 109c since like 2007 so he was definitely rusty with mechanisms etc but still really enjoyed the class. His tests can be ridiculous but he curves generously. also gave explicit study guides... super chill!