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]: Good quality materials and construction. Easy to mount with four bolts on the upper plate then two more in back plate. One of my best purchases ever. Also very stylish, but only time will tell how long it lasts.
[EX A]: Good Review

[EX Q]: I purchased this to replace a different pair of earplugs, but they did not fit any better. So far only one side works. They have good sound if you need the volume up high, there is no reduction to outside noise. Maybe someone will invent better, lighter ones soon. Don't bother with these, they're terrible. Sorry!
[EX A]: Bad review

[EX Q]: I bought two sets. The first set had a problem with one of the earphones. After trying all kinds of tricks and tweaks on my iPod to make them work, I've decided it is not worth returning them. So, after much research, ordered another. This pair sounds fine. The problems are they fall out too easily from time to time. Sometimes when I have some weight in one ear, other times not. They also seem very thin and cheap. Not a whole lot here at $20 per pair.
[EX A]:
Bad review