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: This book has some good basic information on the subject, but does not give enough depth or detail of each subject area to make it well worth buying. It's very basic, so I'm sorry I bought it. I'll go back and get something more detailed when I've had a chance to use this, as it's useless sitting around being passed from one person to another.

A: Bad review
****
Q: I bought this as a gift for my husband, but have already used it. Easy to use, easy clean up. Definitely recommend.

A: Good Review
****
Q: Don't waste your money on this item! The product was defective. I followed the instructions and installed it correctly. Still could hardly hear any sound. It doesn't even do half of what is advertised to do. Wish I had read all these reviews before buying it. Had no trouble returning it, but not much satisfaction from dealing with amazon.com. Never again! They must be running a business somewhere else now or are making stuff up just for money. Do yourself a favor and buy something worth buying.

A:
Bad review
****