Gmat Club tests review

I extensively used GMAT club tests during my last attempt. I was able to improve my overall score from 520 to 710 (quant from 44 to 48 and verbal from 20 to 40). I found the Quant portion of the tests very useful. I could see similar questions in the actual exam as that of GMAT club tests. Performance analytics module helped me highlight and understand my weak areas, which otherwise, I was finding difficult to pinpoint. The verbal part of the GMAT club tests is not very much aligned with actual GMAT. There are many discrepancies in the scoring algorithm as well. The overall difficulty level is bit on the higher side compared to actual GMAT, which I think is a good part of the tests.