JZ is the best. She's very funny, and provides good examples for the test. Sometimes she falls behind schedule, but she catches up. Genuinely cares about her students too.

Professor Zhang is an alright lecturer. She has a heavy accent but is understandable and this adds a bit of a comedy element to the class. She doesn't explain concepts perfectly and goes somewhat fast, but she gets the point across.

She has a VERY thick accent. Nice lady if you are a math person and don't need a ton of guidance with the material, but I found it was difficult material to begin with, and not being able to understand the professor made it just plain awful.

Jing is really sweet and enthusiastic, but her lectures were a bit hard to understand at first because of her accent...But the material is really straight forward and perfect if you're looking for a quick calculus refresher course.