Instruct: Classify Amazon reviews into positive or negative sentiment
Query: don't waste your $$

As someone who does have a fear of falling (not heights) and is using rockwall climbing to conquer it, I was intrigued by the title of this article....unfortunately it provided no useful information, no uniquely provocative or interesting insight. Do not waste your money - the article itself doesn't offer much more than the excerpt offered on the prepurchase page.