I firmly believe if u can just complete all quant tests ,you wont need anything else for a review. Moreover if you maintain an error log and review it regularly, you would be at the top of your game. Quant tests bring out minute details in question which can stump you in the real exam,especially the concepts which you might miss while reviewing .
Verbal tests are also good . But I would suggest if gmat club can add few more verbal tests, it would be a perfect package for preparation and reviews. At last I am happy to use these test. Wish you success.