Professor Kim's class is very organized and clear. Even though he is not the best and most interesting math professor out there, his classes are easy to follow and he does a lot of practices and recaps. He writes all his explanations on the board (in a way that I think is even better than the textbook), so you actually only need the textbook for his homework problems. His homework problems can be a little challenging, but they are still reasonable. The two midterms were very easy for me, while the final is a lot more challenging, but overall, if you do all his practices and review your homework and what he normally goes through in class (and keep a cool head during the exams), the class is not hard at all. He has a bit of an accent, but he can answer questions very well. I also went for office hours two days before the final and it was super helpful. I will recommend this professor to anybody.