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.

[EX Q]: These are by far the best quality and most durable dog toy I've found. I don't feel like they should be $25, but that's just me.
[EX A]: Good Review

[EX Q]: This product is fantastic. Great quality and easy installation with the included video. It was installed within 15 minutes on my 2012 Chevrolet HHR. I have already recommended this to friends who are looking for a replacement mirror, as well as, some extra help installing it. One suggestion before attempting this, watch a few videos online about how it looks in comparison with your existing mirror. The mirrors will be off much more than they had appeared prior to install.
[EX A]: Good Review

[EX Q]: This is a poorly written and organized book. The index lists the chapter titles which only sort them by first name. However, I found three main problems. First, there was no organization at all. Each author had two paragraphs of notes, which weren't even linked to one another. They didn't make sense since they all mentioned different sources. The chapters were not listed in chronological order. Second, it seems like every other essay or paragraph contains some reference to, you guessed it, research.
[EX A]:
Bad review