Soni, another MITian manages a 780 (Kudos, Q50, V47)

He recommends Manhattan GMAT for Number Properties, Word Translations, and Sentence Correction and GMATClub’s tests for the devil which is in the details.

For the last 3 weeks I used GMATClub’s tests. The importance of these tests was that they taught me to PAY ATTENTION. For example, “if n is a positive integer…” — DON’T TRY n=0 or n=-1/2 when trying to solve the problem! PAY ATTENTION TO DETAILS OF THE GIVEN INFORMATION!!! This is where the GMAT catches a lot of people, that’s why I double and triple checked everything.