I selected this book from the glut of GRE preparation manuals based on two factors--the lower price and its five model tests. My thinking was the more times I practiced taking the test, the better. While I certainly can't hold this book accountable for my performance or my score, I can caution potential test-takers that this book seems a little incomplete. There are areas in the math portion where items are left blank. For one of the passages in the reading comprehension section, the question asked about an author never even mentioned in the text! These sloppy details don't cancel out the whole of the book, but they are distracting. When you are preparing to take the GRE, do you really want to worry about your test-prep book being wrong or incomplete?