Very good professor with great lectures and reasonable homeworks. Our midterm was quite difficult but rereading lecture notes helps a lot.

Good professor, great environment in the class. But his teaching is likely to be an info seminar than a lecture. So, if u really want to learn something, I recommend you utilize office hours to talk with him. He's so EZ to contact! And u can use the information from OCW as ur REAL lecture notes if you want both an A grade and a good environment.

Sebastian's lectures are hardcore and derivation-heavy, which I like a lot. He is very happy to answer questions and clarify things. The tests are not hard, and he would brief you before midterms and finals, which are not cumulative.

Good lectures, but does not cover all contents needed for homework so a bit confusing and need self study

Always helpful, tries to make you understand.

One of the best! Very thoughtful, open to questions, wants you to understand and appreciate the material, extremely accommodating. His lectures can be hard to follow at times, make sure to ask questions about the proofs if you're lost. He's happy to clarify in office hours too. He'll tell you exactly what topics will be on exams.