Quality of questions are too good

Surely for those who want to drill themselves with those tough-to-crack quantitative questions. Best part is the in-depth solutions provided for each question. And if one is still not satisfied with the provided solution, elaborated further discussion can be done on forum until clarification of doubts.
There are CATS also, to mimic real time test scenarios but mostly with medium to difficult questions. GMAT club tests for quantitative section are more than enough to fine tune skills required to bell 49+ in real GMAT exam, provided one practice enough questions under timed conditions.
Overall, thanks to the GMAT club team for this great venture. Good luck.