PERFECT TEST SERIES TO BEAT GMAT

In my first attempt at gmat I got a low score of 630.I got disheartened but then I came to know about the gmat club test series and quizzes.I purchased the test series and started practicing. The questions in the test series are similar to what comes in the actual gmat test.The test series help us to analyse where we stand and what all areas we need to work on.Time management which is the most important requirement of gmat can be learned with the help of the gmat club tests.The question banks contain question of all levels(500,600,700) so no other source is required to practice.
In my second attempt I got 700 all thanks to gmat club tests.