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.

This book was written in the 70's by a man who knows his stuff, which is a rare find nowadays. The problem with it is that he relies too much on anecdotal stories and anecdotical sources to support his hypothesis. It feels like reading someone's blog, not science. Also, some of the anecdotes don't make any sense unless you can explain away how they happened.
Good Review

A very handy tool. One of those items that could have been improved upon.
Good Review

In my opinion, it should be illegal to sell a product as is until the government actually issues you with a license or license in writing that clearly states all of its ingredients. I don't recommend this product. Please save your money for an all-natural, proven cure and alternative medicine instead - which has helped us all. This did absolutely nothing other than make me feel worse about trying one more time after already having attempted it. Take 2 capsules twice daily at night like instructed on bottle. Don't waste your money.
Bad review