instruction:
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.
question:
This machine is really good, but not without some problems. While the noise it makes does a lot to mask other noises, our cats definitely do enjoy this thing. It also helps keep them calm, which in turn, brings us much peace of mind. However, sometimes you need your hands free for something else -- like getting the cat out from between the mattresses.
answer:
Good Review


question:
This mug holder works great. It holds one coffee cup nicely. Easy care and easy cleaning too. Great little item.
answer:
Good Review


question:
I used this only five times, then there wasn't any sound transmitted via it. Would be nice to have it replaced with one that works. I've emailed Amazon three times. Very disappointing.
answer:

Bad review