Given an English language product review, determine if it is a Good Review or a Bad Review. A good review is one where the product's review has positive tone and Bad review is one where the tone of product's review is negative.
Q: I don't know what to say about this book. It's pretty much as easy and cheap with less than half the knowledge required. Don't waste your money on it! I recommend taking a class or doing more research....
A: 
Bad review