If you are considering grad school and you are going to take the GRE you should def. go to Manhattan Review. I mean they give you unlimited class time and the teachers are great. Just as an example I recently completed Manhattan Review's GRE course and I took the test and earned a score of 1200 (600 verbal, 600 quantitative). I also think that I did very well on the essay portion of the test as well but haven't received the scores yet.
The instructors at Manhattan Review were great and I highly recommend them for any higher education learning. By the way I got a 1050 the first time I took the GRE.
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