You get what you put into it

Not to sound like a broken record, but your success with Manhattan Prep GMAT depends on how much work you put into it. I mean, real work. I think that the best part of the prep course is actually the strategy guide set. The set, along with the syllabus, are great for those who need a bit of guidance when it comes to studying. The actual in-class course is really for those who need to an extra push. I recommend that you follow the syllabus 100%. Take the practice exams when they're scheduled. I didn't do this, and ultimately paid for it. Create an error log from day 1. I also didn't do this initially and, well, I also paid for this. Follow the guides, put in the work, and the results will come.