Joe Martin is an incredible GMAT tutor. I worked with Joe for several private tutoring sessions. First off, Joe is incredibly skilled and intuitive with respect to the GMAT. He shows his students powerful tricks and strategies for approaching questions. He makes sure to reinforce where these strategies can be applied, which allows for broad improvement in scores. This also allows his students to grow and develop their skills generally. Joe also pushes his students hard to learn and develop their skills, which is much needed given how people can plateau on the GMAT. He is perceptive and can see when a student cannot follow along on a technique, and he then is able to pull out an alternate strategy for a problem. Joe is also a fun tutor to work with, and cares a tremendous amount about the success of the people he works with. Given the intensity of prepping for the GMAT, this makes the whole experience more positive and fun. I would highly recommend working with Joe and prepping for the GMAT (or another) test with him. It is a very positive experience, and if one puts in the work to study and prepare, working with Joe can yield very positive results.