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.

Q: 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.

A: Bad review
****
Q: This book did not have much helpful info. It was basically about getting a horse to do anything. She had way too many tips on how to train your horse. There are ways in which all three children can learn. I found myself skipping over those parts because the information was nothing new. Not worth buying.

A: Bad review
****
Q: We needed a new vacuum based on the reviews and what seemed like reasonable price. My wife used it after assembly but we had problems as soon as you start pulling it. The wand is just too narrow. It also pulls to one side or another when vacuuming. Also, if there is any obstruction that moves up under it, it jams up. Then you have to take every bit of dirt out. I can do this by hand without much trouble now.

A:
Bad review
****