Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Skill Level Titles Misleading

I agree with the other reviews about the layout of this book. The perforated pages are great, and the boxes are nice and big.That said, if you've been doing Sudoku puzzles for any longer than a month or so and are looking for challenging puzzles, this is NOT the book for you. I found the toughest level, "Migraine" to be so easy that I don't even have to fill in the temporary guesses most of the time, and I almost never have to erase! I would rate the "Migraine" level puzzles at possibly "Tricky", but honestly, more at "Painless".I was overall disappointed with this book. For a more challenging Sudoku book, try,Sudoku : More than 200 Fun and Challenging Japanese Number Puzzles, by Tammy Seto.