Kai Zhang
If you have taken Chinese 103 before, then there will be a lot of repeated words and grammars, if not then good luck since you will be expected to tackle both simplified, traditional, and the new materials. Use the note card Anki app or else you will drown in the new words.
He and Wu Laoshi were extremely passionate and willing to help out. However, the material is simply very difficult and requires a lot of time outside of class. Doing well on the quizzes and tests is requires lots of study and memorizing pinyin, English, traditional, and simplified.
Zhang laoshi is the best. He cares about our learning not our grade. As long as you do your work, and study for test you will easlily get A. He cares about students. He always thinks about how he can improve his teaching.