Q50 V45. 770
MG GMAT has been an invaluable tool for me during my final month of stretch.. I mainly focused on the challenge problems (finished about three years worth of CP). And I managed to squeeze in 5 MG CATs. MG CATs have their share of problems, but without these I could not have built my confidence.
For all 5 MGCAT and 2 GMATPreps over the past month, I have been getting 750 - 780, but each time I learned something new. I would recommend MGMAT to anyone who asks.