When I took his class, there were only 10 students in the class. I really liked such a cozy classroom. Plus, we used his book as a textbook so that his lecture was perfectly easy to follow.
His exam was not hard at all, either. He passed out sample exams before every exam, and we only need to study that. Yet, that doesn't mean that I didn't learn from him. I think that I learned a lot from him. He was available and very helpful both in class and outside of the classroom. I could tell that how much he enjoyed the material he was teaching. He was very charm, and I liked him not only as a person but also as a professor.

Since we used the book he used, the lecture was perfectly followed the book so that it was very easy to understand his lecture.
His exam is not hard at all. He gave us an sample exams before the midterms. But the final was harder than the midterms.
Yet overall, he's very energetic and has a charm to teach the material. Though not many people have to take this class, I would recommend to take it if you like to study in a close relationship with the professor. (we had only 12-15 students in the class.)