The reviews I've read here are way off base; Amity is a great teacher--by far my best in the Fall semester.
First off, she is a kind grader. She seems to understand how difficult it is to survey the entire history of western art in 16 weeks. Show some honest thought in your work and you'll be happy with your grade. Proof read carefully--her only pet peeve is careless writing.
The 'lectures' were fun and easy to get involved in. Not overdone with academic language as I hear most W1121 classes are. Even on my groggiest days she seemed to rope me in.
My only complaints have to do with the room we were in and the department's structure of the class. The room had bizarre acoustics--it swallowed voices whole. This is probably why these students believe she was shy. If you're on 6th floor Shermerhornit be sure to sit up front and you'll hear everything but the irrelevant anecdotes being told towards the back. The structure annoyed me because it forced me to listen to inane comments from other students. Discussion is a large part of the class, and is only as good as its make-up. This seems to be the case for every Art Hum class, so beat the BS'ers to the punch and try to learn something.
If you simply want to learn things by rote, audit didactic lectures, and generally be told what to think and then be tested on what you've been told then Amity might not be the best choice for you. On the other hand, if you want to be challenged with sharp questions, aren't afraid of thinking for yourself, and want to gain some understanding from this mad rush through several thousand years of western art then she's a great choice.