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 should have read the reviews before purchasing. This book has lots of cute illustrations, but as far as information provided it's not worth buying. Just a quick overview. Not really helpful to me. Good if you need help with your puppy or cat, though. Also, no advice for owners who own older pets, like my dog.
Bad review