Manhattan GMAT 9-Session Prep Course

The course was really fantastic. Patrick is a terrific teacher. I took this class in Santa Monica, CA (although that option was not listed). The nights really do fly by even though it's a long class (3 hours). Patrick makes it a lot more fun than it should be, and he'll even give you a bit of extra time - he's not someone looking at his clock for the course to end. It's definitely a lot of work, but it's all on you. The more you put in, the more you get out of it.

Also be sure to take advantage of the free private sessions. Best way to get the most out of those is to prepare questions in advance, or ask the instructor to look at previous practice tests.