Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Clumsy composition, old-style questions in CD

Compared with other current GRE reference books (ETS powerprep: 5 stars, Kaplan's GRE: 4 stars), this GRE book seems to be just one star. Clumsy composition and the author spreaded just one GRE practical test for the large volume of the book. Enclosed CD will also make you disappointed. Totally different styled background format from official GRE test and IF YOU QUIT THE TEST BY MISTAKE, YOU CAN NEVER ACCESS THE TEST PART AGAIN. Stupid software! Don't spend the money for this book. ETS Powerprep will be enough for high score.