Great videos and explanations to each practice problems.

I studied for approximately two months before I took the test the first time. I used Manhattan prep books, OG15, Math and Verbal OGs, and Aristotle Sentence Correction. I studied probably 3 to 4 hours a day for two months straight and could only seem to increase my score by 20 points on my first GMAT from my practice tests.

I then switched gears and ordered the Magoosh Premium Prep. I went through almost all the videos and about 1/3 of the practice problems. It seemed to provide the missing key to unlock a great score. I went from a 660 on my first test to a 740 on my second test. I think Magoosh tied together all the info I had learned and was a great review to take the test the second time.

Improvements that could be made:
-Be able to download videos or preload them some how - I travel a lot for work and had lots of time on my hands but no internet access while on the plane.
-Percentage complete of video lessons/minutes remaining in each section