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.

These were okay, but did not last very long. I had them on my iPhone 5 for about two months, when one got scratched. It was easy enough to remove from the phone, though. And they aren't overly expensive.
Bad review