TTP saved me from Manhattan Prep's awfulness - 620 to 770!!!!

I initially got Manhattan Prep's All The GMAT paper books. It was helpful to have something in hand to read, but otherwise pretty useless. I took the Official Test 1 and got a 690, then two of the Manhattan Prep CATs -- 620/630. The Manhattan Prep CAT's were confusing as all get out, and seemed nothing like the official test. I took a 6 month break after getting insanely frustrated with Manhattan Prep's web portal thing. Hot garbage.

I came back, decided to do TTP because everyone posted about it on reddit. I spent one month blitzing through TTP and got a 770 on test day, 49Q 47V.
TTP raised my Quant by a good 6 points, and took so much pressure of my mind that I was able to settle into Verbal and concentrate through it. It also had a lot of general test taking tips that put me at ease and allowed me to blast death metal on the way to the test knowing I was going to Mess Stuff Up and own the GMAT.

TTP delivered. MP was pasta garbagio.