Excellent.

Manhattan GMAT's reputation precedes itself. After hearing about it from all my college friends, I decided to sign up for a formal class with them. What I found was an extremely talented and engaging professor, and extremely well developed teaching methodology, and tons of GMAT experience. All in all, it'd pretty hard to go wrong with the 9 session Manhattan GMAT course, especially since it includes all of the books you need to succeed on the exam, as well as $300 retake course in case you need a refresher later on. What's more, the courses attract many other talented students who want to succeed, so you can organize study groups, or at least be motivated to study hard to succeed in the class as well as on the final exam itself. I highly recommend this class, and hope you find it as helpful as I did.