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.

It is definitely a unique design. Unfortunately, it does not function well. You have to be very precise with your touch and you don't really feel the brush on my teeth at all. Not sure how else I can complain about something when it's still working perfectly after several months. One of the things that makes this toothbrush stand out is that there is no battery. With other batteries, they inevitably fail or die because they're always sitting around. This one doesn't.
Bad review

This is my second MDR-V6's I've owned. The first lasted 6 years before the plastic cracked on one side. But I kept them outside in all weather so they didn't seem to matter too much either. So when I picked up this new pair, I just knew that if anything would do it, these would. They're very solidly built, and not at all flimsy like some of Sony's...perhaps there were a few bad ones, but mine came looking perfect unlike another person's review.
Good Review

The sound quality is great and it blocks out all external noise really well. When you turn on either one or both earphones, nothing but ambient noise!As for comfort while using headphones; it's great.

Good Review