I have friends taking the live Kaplan course, and according to them, it consists of questions that have not been updated in quite some time. I've stopped doing them, because the Kaplan people told them to concentrate on q bank (it's a good thing--I wasn't doing too well with those q book questions)!
From what I've heard, qbank is a very good indication of the types of questions you'll see on Step 1.
Hope this helps, and best of luck on the exam!