Ricky Lee was one of the best professors I've ever had at UCSB. He knows 4B is a gen math class, and teaches/grades based on that expectation. His exams are easy, and are problems that he has explicitly prepared you for. Homework is light. HW is 25% and the three exams are each 25%. If you have the chance, take his class!
Best teacher. Made sure his exams were what was taught in lectures. learned a lot