GMAT club CATs has played an important role in GMAT prep

Collection of CATs questions is highly relevant. You can comprehensively analyse your weak areas and directly work on them by forming a quiz on the topic. It is a short and quick way to prepare for GMAT.
key benefits:
1. Sectional CAT helps you to track your performance and give you highly quality questions during your prep
2. Quant questions are extremely good and recommended to someone looking at 51 quant score.
3. you can make your own notes in each question
4. get high quality discussions on each question here
5. you can post your queries and get them resolved
6. bookmark your wrongs and rights, which during the test you were not sure of.