Licheng is very nice! Super approachable. I just saw him on the bus this week. His discussion section isn't hard--he splits you up in groups based on where you're sitting, and each group discusses one of the readings before coming together as a group to pick out the important parts of the readings. He's from China, so it's interesting to compare to his cultural viewpoint. His accent can be hard to understand at times, though, but overall he's very easy to communicate with. He likes to ask questions that people can answer with personal experience. I liked him as a TA, for sure. Make sure you don't skip class though, because you're not allowed to have over 3 absences for ANY excuse (sick as a dog? family death? Oh well, still counts as an absence) and he takes attendance.