Chatterjee was a good professor in my opinion. Lectures aren't as great, as they are pretty dry and boring (most other reviews on here seem to agree with that); he basically goes over powerpoints that you have access to online. I got much more done studying the book on my own than I did going to class. However, he sometimes will give hints in class about theories, etc. that you should know for the exam. This is one reason you will want to attend class. Although his lectures can be boring, he is nevertheless very helpful if you approach him outside of class with a question. If I went to his office hours with a question, I always left with a clear understanding on the material that I had been confused about before. Quizzes, midterm, and a final were all somewhat tricky, but he grades on a curve and seems to be pretty lenient with grading (I'm guessing at least 30% of the class probably gets an A). Don't be fooled, you will have to work hard in this class to understand everything and do well. But if you put in the time and effort you will do fine and probably leave with a good grade. I recommend this guy and would definitely take him again.