I just finished the MGMAT course and highly recommend ti. I took princeton review
prep for the sat, and while it did help, it focused more on guessing strategies. I would assume their style would be the same, simply because of the size of the program, they would need to do that to keep their curriculum uniform across the board.
MGMAT focuses on the fundamentals and my instructor was excellent . I have posted another thread on him specifically. Class sizes are small, you can can ask a lot of questions. Also, you get one half hour of phone tutoring for free a week.
I'm still waiting to get more feedback, just like you!
Anyone have experience with MGMAT? We'd love to hear some more.