Redeemed my 200 GC points for GMAT Club Tests. Probably the best use of my points. The tests help individual to think out of the box and revise all the important concepts especially combinatorics. The difficulty level for the quants is on a higher side compared with the actual GMAT. But the tests help you in gaining confidence for 600-700 Level questions and also helps individual to improve speed and accuracy. Completing all the 26 quant CAT is sufficient if one wants a high quant in actual GMAT. Also, the explanations are clear and one can take the incorrect questions as a quiz to memorize the important concepts.