Given the task definition and input, reply with output. 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 didn't work at all on our Toshiba Thrive Tablet/10.1, so we had to keep it plugged in whenever needed. I am disappointed with my purchase, but thankfully the seller was very polite and will refund me fully. If this item isn't for your particular tablet, or brand of device, you may have better luck than us.
Bad review