Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not great.

As a review guide, this book is fairly decent. Unfortunately, that's about where it ends. There are very few practice questions, and several of them are incorrect. Additionally, the CD that comes with this version - which nearly doubles the price - is almost completely worthless. The first question of one of the CAT tests had an error which made it unsolvable. On top of that, you can't save your progress if you don't want to do the entire exam.If you see this at a garage sale, by all means, pick it up. But the "Pass Key" version of this book (which retains most of the review material and omits most examples) is a better buy, supplemented with the GMAC books or Kaplan. But if you're looking for a top-to-bottom study guide, I'd skip this.