Worth your penny

I purchased the e-GMAT GMAT online course with which i got complimentary access to GMAT Club tests. The biggest advantage of GMAT Club tests is that you have access to plethora of questions for your practice (more than 1500 question) in both Quant and Verbal.
The flexibility of attempting these questions in the form of CATs/ quizzes was another brilliant feature which enables you to first improve your understanding on a particular topic and then track your progress.
You can also create custom quizzes based on your strength ad weaknesses and analyze where you are going wrong. The analytics is another great feature which will help you understand where are you making most of your mistakes/ spending more or less time.
I would suggest everyone to first test your current level by taking a CAT and then work on the weaker areas. After which you can attempt one CAT per week to measure your progress and further refine your strategies. E-gmat Online course along with GMAT club tests helped me jump 100 points in my GMAT score and secure an admit from my targeted Business School.