Fall 2022 - This man is my hero. He's so kind and a great lecturer. He'll get really into the material to the point that it makes me laugh sometimes but I'm not laughing at him, he has my full respect, I just think it is very sweet. Analysis is a hard topic no matter who you learn it from, but he teaches it clearly and his class is structured, tests are reasonable. His homeworks are well written and sometimes enjoyable even. My favorite math professor I've had here. Take Tyler Arant if you can't take Terence Tao
Spring 2022 - This review is for Math 131BH. He's an amazing lecturer and has a lot of office hours where he is extremely helpful. He does often cover material outside the textbook (Rudin), but it all seems like it does definitely belong in this class and he writes really high quality lecture notes for the extra material. The class is extremely extremely difficult and painful and the final was brutal but I do definitely recommend it if your goal is to really work hard and learn analysis. He's also a great person and is very very entertaining in his office hours. He really is an amazing professor.
Fall 2020 - Avoid this guy, his syllabus may fool you with having 90% as solid A and having 5 online quizzes, but he's teaching is the worst. When it comes up to quizzes and midterms, they are impossible to get full score. I just wish I dropped the class before the first quiz was graded, at least I could've changed the section or the class for easier one.
Fall 2018 - Rolando is one of the best lecturer I have had at UCLA. he gives exam reviews that are super helpful and clear as well as gives practice problems that reflect the exams. He also explains things very clearly and is very helpful and approachable during office hours and through email. He’s the guy to take this class with
Well, I found many negative comments about Prof De Sapio, most of which are from lower div. However, for upper div math classes, he was pretty good with clear lectures and sometimes a sense of humor. It's a fact that materials of 131B is pretty darn hard, but he did a good job explaining them. One bad thing about him: His tests are all handwritten, which makes it kinda hard to read.