“The GMAT is a game”.  It isn't about math skills or knowledge of grammar.  It's a combination of time management, intelligent guessing, mentally moving past short-term failures on individual questions and an attitude that you can and will crack this test.  Kalyan teaches you exactly those skills in his course.  The first time I took the GMAT, I got a respectable score (690), but felt I could do better.  The problem, of course, is that it's a lot easier to raise a low score than a reasonable one.

It's not so much that Kalyan teaches techniques and strategies that you can't find by buying prep books and going online.  What he does put you through is a program that makes you look at a GMAT problem and quickly zero in on the most probable answer.  You learn how to rapidly diagram a problem so that you realize what information you need - the entire basis of data sufficiency.  The assigned homework is structured in such a way that applying the basic concepts the GMAT tests becomes second nature.  And the entire time Kalyan impresses upon you that you are your own worst enemy when it comes to the GMAT; that the problems really aren't hard, and that the worst thing you can do when faced with a question you can't immediately deconstruct is to let it prey on your mind through the next few questions.  I took the test again after spending about a month with Kalyan and boosted my score to a 750."