I've only seen maybe a few posts about the review course since I've been here. Every time it got a horrible review. However, that's not much information to go by. If you really want to be sure, call up the EK center and ask to sit in on a lecture.
Honestly, I haven't heard a lot about the actual course, but I used the review books in my own personal studies for the MCAT and they raised my score by 5 points from the first time I took the MCAT (after just the Kaplan review course). I thought the books were very thorough and gave me a solid review on all of the foundations in the courses.