MGMAT -- Very Good

By far the best. Even its test series alone can bring about great improvement. I didn't go through the entire material. just did the tests and used parts of the material (a few PDFs). I'll therefore not list the pros and cons but just say that whatever i did from MGMAT was fresh and great. The CAT analyses was absolutely fabulous! very detailed and helped me improve A LOT. It ensured that i never slipped downward. only went upward in my score. I didn't need any support. BTW, they also provide you the option to reset your account to start from scratch if you want to(in case your prep got a break or something). PS: their flashcards were very handy.