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: When I bought this book I was expecting more information. Most of it I've had heard before and could find very easily at the library. There are a few helpful tips, but overall, not worth paying for it! Unless you're someone who knows absolutely nothing about getting older, then maybe it's worthy - to save you some money. It only takes me 10 min to write my thoughts on every topic in the book.

A: Good Review
****
Q: This does the job, and it works well. The only problem is that if you use your phone after it's fully charged, which takes quite a while, it'll kill this power supply pretty quick. There was also an internal short in my unit after several months, leading me to believe I got a lemon. As others have noted, their customer service is excellent, but they will not honor warranty. What we ended up doing at our local electronics store for a replacement charger wasn't bad either.

A: Bad review
****
Q: I have always used WD HD's, however there has been an inconsistency at the time of purchase and quality to date...they are either DOA(Dead on Arrival) or barely worked. This one was bought as a backup for some old photos so that if anything happens this would be back up. Unfortunately, when it arrived - not only did my computer recognize it, but also Windows 7 recognized it just fine. So, I went ahead with uploading them to it. But, everything seemed perfect.

A:
Bad review
****