Helpful in improving your score by atleast 4 points

About GMAT Club tests i got to know through one colleague of mine and i have been active on Gmat Club since then . My quants score improved from 39 to 46 , Verbal not that much but definitely some improvement i have seen . I recommend GMAT CLUB Tests for Quants if you want a in your score from 46 to 51.The Solutions provided by Bunuel are nicely explained and you can see other explanations too if you are not satisfied with Bunuel's explanation . You see mostly 750 plus level questions which are very helpful in improving your score. You need to keep an error log for your mistakes and retake the wrong ones through quiz to see if you are comfortable with that type of question.