I was lucky to work with Jeff Miller in private tutoring sessions. We worked together over the course of just one month (seriously!) to increase my GRE quant score several points (to a 162). Jeff was excellent... he methodically addressed my weak areas and built up my confidence. On my own time, I did TTP chapter quizzes (very helpful and organized by content area). To be honest, I first found TTP a bit overwhelming, but I would recommend it to others... you can test yourself on the chapter quizzes and see how you do. For me, the quizzes unlocked areas I didn't even realize I needed more attention. And teaming up with Jeff was key to my score increase. Good luck! And many thanks to Jeff and Scott!