I took the GMAT the first time in June of 2013, and got 650. After studying for another 3 months (plus working full time) I took it again in December and only improved by 20 points even though on the GMATPrep exams, I've gotten a 700 and 720. I felt a lot more relaxed during the test the second time around and truly believed that I would be able to get to 700, so you can imagine my disappointment when I saw I only improved by 20 points after months of hard work.
My target schools are MIT, Columbia
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My target schools are MIT, Columbia
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