He's the GOAT. His lectures are not simply a learning experience, but an entertaining theatrical show. And the stuff that he teach is very useful in real life.

This class was so straightforward. Understand the notes very clearly and just practice tweaking examples as preparation for the exams. Lectures are most important and we used the book only for the distribution tables in the appendix. It's worth it to watch lecture recordings even if you attend lecture. Had weekly quizzes and optional homework. Midterm was super straightforward, but the final was made slightly more difficult. My good midterm grade landed me my A.

5/5 in every category. Don't listen to the Bruinwalk reviews for his 170E class. Prof. Chan is a really good teacher : his slides/notes are very clear, he cracks jokes a lot, his class is easy, and he is very enthusiastic. All of the above made it actually enjoyable to watch his lectures over zoom, which is really saying something.