Reviews of professor Jie Cai

Rating: 3.0/5, difficulty: 4.0/5
Good professor but pretty hard class. 3 exams and each are 20% of your grade and 20 questions each, all multiple choice and no partial credit. They reflect the slides and what is taught in class pretty well, they are also open-book. The final is pretty difficult and he typically curves it. If you go to class and pay attention you'' be fine.

Rating: 5.0/5, difficulty: 3.0/5
Great professor. Pay attention in class and take notes. 2 exams in-class done on your laptop all multiple choice. He provides practice exam questions. Although his style of teaching can be boring he does care about this students and making sure we understand. As long as you put in some effort to learn and study you should be fine.

Rating: 2.0/5, difficulty: 3.0/5
He is unable to explain information clearly and seems confused about the content he is delivering to his audience. However, if you have a good financial foundation from other professors, you will be fine. 
Additionally, he gives some people extra points but not others, which is strange, but there isn't much you can do about it.