I found the kaplan lectures to be quite useful. I assume you mean the live lectures. It helped me concentrate on the important aspects without getting carried away by the large amount of info to be reviewed before the exam.
I suggest you take the free diagnostic exam at a kaplan center and also take the free 1-day tour to go thru some videos. The videos r what the lectures will be like, but the live lecs r what leave an impression in your mind. And if you're like me, who left to myself would take ages to review stuff, you'd be better off with the live lecs which will force you to keep up with the class.