Raised my score by 150 points!

I had a great experience with Manhattan Prep! My starting practice GMAT score was 560 and my final official score was 710. A 150 point increase!! I took the class in NYC with Reed Arnold, and I highly recommend taking the course especially with him. Reed made the classes very enjoyable and effective, and he scheduled weekly "study groups" at a nearby coffee shop for students to get extra help from him and other classmates. I went to a couple of the study groups and was able to ask him about specific problems, and get detailed explanations for them. The Manhattan Prep guide books were a great resource, too. I studied about 25-30 hours per week outside of class for about 8 weeks, so you can't expect the course to raise your score without your own self-guided study. Manhattan Prep was the an awesome resource, along with the Wiley guides.