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.

I'm a fan of the books on learning German, but this book is only so-so. It's much too basic. After I learned to speak and read German before attending university in Germany it was really interesting reading his story about traveling everywhere with absolutely nothing in my pocket. So it's hard not to, like some other reviewers here, feel let down.
Bad review