Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What the hell, GMAC?

Haven't taken the GMAT yet, but I have to review this book because it kind of sucks and it's frustrating. I have found more than several misprints, and just some weird information in there that just isn't right. I bought this because I wanted at least a feel for what I am going to be up against when I take the actual GMAT, but I can't believe how there are misprints and inaccuracies in this book. How will people be truly prepared, if that's the case?!The math review is helpful, but there is little to no advice when it comes to the sections regarding data sufficiency and sentence correction. One of the tips for sentence correction just tells you to read! Books, newspaper, whatever, because they generally use correct grammar. What?! Seriously, GMAC?I use the problems in this book for drill, in tandem with the Princeton Review books for strategies. I think that's the best way to go. I sure hope the 12th edition has improved on the misprints and whatnot... buyer beware!