Sherpa Prep for the win
Sherpa Prep is amazing. I was on a tight timeline to take the GMAT and apply for business schools' Round 2 deadlines - I was only able to attend 6 of the scheduled 10 classes prior to taking the test. My instructor (Nafeez) gave me plenty of personal attention and feedback to reach my score goal on the expedited timeline. As a result, I was able to spend 100% of my time preparing for the test and 0% figuring out what to study. I got a great score, which would not have been possible otherwise. I could not suggest Sherpa Prep enough for anyone taking the GMAT. In addition, Nafeez is an awesome guy and instructor. Thank you Nafeez and Sherpa Prep!