First step toward my MBA

After 1 month of intensive training, I finally did the GMAT this morning! I obtained 680 (88th percentile). I believe 1 month was a bit short to prepare this exam in the best way. I think it works like this: small effort to get between 640 and 660-670, larger effort for [680,710-720], and really big effort (or smart ass ;)) to get above. Also, for non native speakers, it would be worth taking a english class for grammar and vocabulary. For exemple I scored almost full point in quantitative (Maths) but quite low in Verbal (grammar, reading comprehension). Moreover, the test is computer based and adaptive, so if you get many questions right, you are given really crazy questions, I ended up with a text I could not understand, really nasty! Anyway, what counts is to get a score "acceptable" for the school you want, the real difference will be made on your background, both grades, work experience, but also your motivations. First step, checked! ;)