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]: I am a fan of Jack Reacher books, but this is the worst one. Usually he doesn't bore me as much with long winded dialog that takes up pages, and this time not even close. The last 20 pages or so were pretty good when it got to actual action. Not recommended.
[EX A]: Bad review

[EX Q]: This product performs as expected.
[EX A]: Good Review

[EX Q]: After years of trying to trim my hedges and shrubs around our house, with limited success, I decided that the power head trimmers would have more than enough power. The saw also did a great job. At first, like some other reviewers, it seemed rather hard to get the hang of: pull back on the handles, push forward from below and hold it. After using this product for several months, though, I've mastered it, so it's no problem anymore. You can buy replacement blades too. All in all, worth every penny.
[EX A]:
Good Review