Professor Vassiliev has a way of frustrating you and intriguing you at the same time. In 8 AM lectures, he is almost impossible to understand, but it is clear that he is passionate about his subject and wants you to love it as much as him. I learned almost the whole subject through the textbook, but I gained a newfound appreciation for Physics by visiting office hours, where we could spend close to an hour talking about a single problem. One-on-one, he is a far better teacher than during lecture, so if you sign up for this class, take advantage of office hours more than lecture time. His exams are quite difficult. There are 4 across the quarter, and no final exam in Week 11. Each exam and homework assignment has a lot of extra credit opportunities, so it's good idea to at least attempt the homework ones. If you're a Physics god, try the exam ones too.