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.
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Question: First I'd like to say - this item is an absolute must if you are shopping in Amazon.com.

Answer: Good Review

Question: 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.

Answer: Good Review

Question: This is a basic unit that provides adequate capacity without any frills, and at very reasonable price. The only negative comment I have would be the lack of user replaceable battery. It can stay connected in an open situation, but not if you put it on a shelf for a few weeks, like mine did. It should either go with batteries, or make sure to mention this limitation from a beginning.

Answer:
Good Review