One of the best resources for GMAT Quant.

The GMATCLUB Tests are an absolutely must have if you want to score a 700+ on you actual GMAT.

I had extensively used GMATCLUB tests for my Quant preparations and I can confidently say that it is one of the best resources out there. The quality of questions in the tests is absolutely top notch and really prepares you well for the real GMAT. Once you are done with learning the concepts, GMATCLUB tests do a phenomenal job in helping you solidify the concepts.

The questions are divided into three difficulty level: 500 level, 600 level and 700 level. Though the 700 level questions are a bit tougher than that of the real GMAT, the questions still give you a very realistic feel of the actual Exam. The test interface also closely resembles that of the actual GMAT. The questions are also divided into different topics and you can also take custom quizzes to improve on your weak areas.

It also has a large question pool (1000+ in Quant) and gives you ample practice in all the different topics. Each question is designed to make you think on your feet. Plus the tips and tricks used to answer each questions by Bunuel is absolutely incredible. By the time I was done with these test my average time to answer the questions went from 3+ minute to under 2 minute even for the most difficult questions.

One of the best things I found was that after the official explanation, there was link that takes you to the GATCLUB thread discussion where the question is discussed in detail and you can ask any doubt you have with the regard to the question and the explanation and one of the GMATCLUB experts is sure to clear your doubt.

Further, another thing I found incredibly helpful was the Test analysis feature. It helps you learn about your performance in the test and helps you identify your weak areas.

All in all I feel GMATCLUB tests are an absolute blessing for the GMAT test takers and is sure to help you achieve your target score.