After studying Princeton GMAT books (was given them - and not highly recommended) and using Ready4GMAT on my Android (very good first casual effort before getting serious) and taking the two free official practice tests (scoring 710 and 730), I took the GMAT four weeks ago and scored a 690 with 43 quant and 41 verbal. Having been out of any real math studies for quite a number of years, both of those were good basic foundations for a high 600 score, but that is not what I was striving for. The weekend after that test, I tried two free sessions from
e-GMAT, and I immediately signed up for their math and verbal (without live sessions because I knew I wouldn't have time to really take advantage of them).
In two weeks, I jammed through every lesson and question for math and select sections for verbal. I didn't do much else those two weeks! I also took all of their scholarium tests, reviewed my weak areas, and took a couple
GMAT club tests. I also purchased two additional official practice tests (scored 720 and 750). Actual practice tests are HIGHLY recommended.
On 19 August (two Saturdays ago), I retook the GMAT and scored a 740 with 48 quant and 44 verbal. I studied very hard, but
e-GMAT's lessons were the most complete of any - between that and their scholorium tests (which showed my weakest areas) applied much needed discipline to my compacted study efforts - and their suggested problems from the official GMAT study guides were incredibly helpful. Considering GMAT is certainly a factor in school acceptance - I highly recommend
e-GMAT if you are looking to score in the 700's - it's worth every penny!
In case anyone is wondering - this is not a paid endorsement - I fully paid for
e-GMAT. I was impressed enough to write them and leave a comment here. Thank you also to GMAT Club members for working through problem solutions when not available elsewhere - that was also very helpful.