Highly recommended for GMAT prep

I would highly recommend TTP for GMAT prep. What I love most about it is that they have every lesson broken down into chapters, and tests/quiz after each chapter to reinforce that concept. This requires more concentration than video lectures and initially might seem more difficult, but it's a much more efficient way to learn and understand concepts.

I also love being able to create quizzes and analyze my mistakes allowing me to focus my efforts better. On top of their great material, their UI is really nice as well and makes studying a lot more pleasing.

I would encourage everyone to take their free trial. They provide access to the full course and no review can tell you as much as the real thing. I'm not surprised at all that they are the top rated course.