TTP works wonders

Strengths:

Lots of practice problems to drill on. Great in-depth guides on how to solve problems. Also, the course builds on itself in a very natural way. They take themselves seriously -- the course is comprehensive and a ton of work if you're looking for a high score, but it pays off.

Would make the product better:

It would be nice to have the option to "freeze" the plan, because you pay for a certain amount of time to have access to the material. I ended up doing my studying all in the few months leading up to the test, because I wanted to minimize the cost, but I could have

Target Test Prep (TTP) is the perfect prep course to prepare for the GMAT. The course builds on itself in a very natural way. It takes itself seriously -- the course is comprehensive and a ton of work if you're looking for a high score, but it pays off. It's got tons of great practice problems, detailed solutions, and video walkthroughs. Even more valuable, the course itself teaches you everything you need to know--including what kinds of questions show up on test day and strategies for quickly solving problems--which proved vital on test day since on the GMAT, speed is crucial. 10/10 would recommend to anyone looking to score 95th percentile or above.