GMAT Club Tests

GMAT Club Tests are a good investment into your prep study. You can find a long range of questions from easy 500 level to very hard 700 level and a lot of them harder than the official GMAT Questions but the key part is that once you master these questions, GMAT becomes easier. For me it worked because at the beginning of my Prep i had a hard time figuring out my weaknesses but once i did, GMAT Club tests were helpful in that i created quizzes with the topics that were hard for me in order to understand the different ways that the GMAT tests your knowledge on a particular subject. As well you can do complete Quant or Verbal section test and the result is very accurate to what you will actually get on the real thing. I recommend this tests mostly for Quant.