Reviews of professor Jinniao Qiu

Rating: 2.0/5, difficulty: 3.0/5
Has a strong accent and goes pretty fast during his lectures. For some questions, he would straight up just write "do it yourself" and then move on. Halfway through the semester I just stopped showing up to his lectures and studied the topics myself. He seems like a nice guy, but has a thick accent and goes too fast.

Rating: 4.0/5, difficulty: 3.0/5
He's fine. His accent is a bit strong but that's not a big deal. He really takes problems one step at a time and explains things very well. I heard he responds to emails very well but personally I did not feel a need to email him so I am not sure. The course itself is somewhat difficult but he's trying his best to make it easy for us.

Rating: 4.0/5, difficulty: 2.0/5
You can tell that Dr Qiu is a great guy. He does have a strong accent, but if you make the effort to follow along, I didn't find it to be an issue, as everything is broken down clearly. Very well prepared, and really wants to make sure people understand the material. Goes over stuff relevant to the assignments and exams, which weren't very hard.

Rating: 1.0/5, difficulty: 4.0/5
Very difficult to understand, and uses the worst possible methods to convey the material. Very proof heavy.

Rating: 4.0/5, difficulty: 2.0/5
Dr. Qiu is a great professor! His accent is a little tough to get around but you get used to it. He is accessible outside of class and is prompt at replying to emails. The course is somewhat difficult but Dr. Qiu broke down the questions in an excellent way that made it not too hard to understand.