I'm not sure how the other TAs for Gen Chem II with Kaufman/Gonzales are but I do know that if you get Nevette as a TA...switch. Now.
Her quizzes range from incredibly hard and tricky to deceptively easy week to week and she has a slightly hostile attitude towards questions / everything. The quiz averages are around 1-1.5s and she gets really annoyed if you ask her a question that was not emailed to her beforehand.
Overall, she isn't very approachable and the quizzes make me feel like complete poop afterwards most of the time.