Winter 2019 - I was a first-year pure math major when I took 33AH with Ronchetti in the Winter of 2019. It was quite a pleasure to attend lectures; they were clear, concise, and straight to the point. When he would display theorems, he would immediately give telling examples to make sure the class would understand how the theorem applied. As well, he stopped frequently to ask for questions and would answer all questions with astute clarity. In office hours, he was kind and pretty damn patient, too. Again, he explained concepts very clearly and offered supplemental intuition for concepts without giving away the answer. Now, his homework assignments were BRUTAL. I expected difficulty, but not to the extent he offered. We had between 8-16 problems per week, with maybe 1/3 of the problems being proof problems. Ronchetti is also very strict on homework submission, with no late homework being accepted (although one homework is dropped of the 9 we had). His exams were definitely easier, and were doable if you did all the homework with additional textbook studying on top of that. I am a big fan of proofs, and this class definitely helped me develop stronger mathematical maturity in that regard. The tough homework assignments paid off, so if you're serious about math, take this class. You'll have to work for your grade (long hours of self-studying from the textbook), but it was definitely worth it for me.
Spring 2018 - The highlight of this professor was his office hours. He had some of the best office hours of any professor I've ever had. He was very helpful without just handing students the answers to the homework. BUT he did assign a LOT of homework. Overall I really enjoyed this class and I think mostly it was because the professor was so cool.