Believe it or not, I have a CPA and a CFA Level III candidate and my verbal shows that I should have been a writer!
Anyways this place did help a lot, the most benefical was reading how other people studied. There is no one formula. Just do questions and relax in the test.
Bascially I sat down and said **** it when I took the test. The good thing is that I can improve my quant, I probably made some careless errors.
****
Another improtant note, the GMAT is not everything, it is just a part of your application. Of course a high one is great, especially for the school's rankings. But if you are a 740 and cannot hold a conversation and act like a introvert, you are not going to a top school.
I may take the test again, but right now I am on the application hell train.
But yeah, this website did help a lot. It made you realize that ANYONE can ace this... you just got to have "the want"
Cheers