GCT must for high achievers!

In middle of your preparation,GMAT Club tests help you stay subtle and always on your toes since these tests are above actual GMAT questions level. It may seem demotivating in the beginning of your preparations but as we start building confidence,these tests keep giving you a check on your preparations and make you think more on how to improve your concepts. Bunuel explanations for every single question is an icing on the cake,his definite approach gives another dimension to your thinking process. A small edit in my review-These tests deserve 5 star rating. :)
In short,GMAT club tests are must if you want to demolish especially quants on exam day. All the best!!