I am personally a huge fan of Kelly (I refer to him as BK for Bill Kelly) but it's more as a weird infatuation with his sweaters and how he sounds a little like Christopher Walken. Class wise, here's the rundown:

Structure: The class is consisted of two 30 question multiple choice tests that are 30% of your grade each and one 5-page MAXIMUM paper that's worth 40%. I feel like the tests are fair and they take a good mix from lectures and readings.

Content: Really interesting class that goes into the stereotypes and conflicts dealing with individual cultures and sub-cultures as well as class, race and gender within said cultures. BK puts most of the readings online so you don't really have to buy the reader.

Difficulty: Of course, this is why everyone comes on this website. I have taken two of his classes and gotten a B+ both times. I don't do all of the readings and I missed a fair amount of lecture as well. Had I done everything, I feel like I would have gotten an A- at least. I'm not a very good multiple choice test taker as well so if that's a forte of yours, BK is your guy.