To round up my experience with that forum I want to post my GMAT score for the sake of completeness. I took my GMAT yesterday and scored
680 points (48 Quant / 35 verbal)
I was a little disappointed with my score, since I expected it to be better, yet I don't know if I fully understand the result. The application process will show if the three months time to prepare for the test paid off. It was the first time I took the GMAT and I do not plan to retake it, since I don't have the time and endurance to take it again.
A big thank you to all the members, which made that 3 month preparation journey a nice time. Often, when I was not motivated to study books or take online exams, I hang around in the forums and I believe I learned a lot from you all. For all those, whose GMAT test is still in front of them good luck and I wish you a high score and much fun in the forums. I wish you all achieve your goals.