Our teacher, Marc Gasway, was excellent. He never hesitated to stay after class to answer any questions we had. He explained every question that we were confused about in great detail. He was very sincere and personable. He also knew what he was teaching very well. Unfortunately, I scored worse than before the class mainly because I was very stressed out and over analyzed the questions in the beginning of the test and therefore I was unable to answer all the questions. Luckily, Kaplan has the higher score guaranteed policy in which if I attended all the classes, I was able to get my money back or return to the class. I think I'm going to go back to the class and take my GMAT again in October. I highly recommend this class for GMAT prep unless you already score a 700+