No, I think that many posts are a cover for an overactive male ego. Success stories spawn more stories, and the lude comments and jokes begin to soar.
Does it work? Yup. Simply put. The success stories continue to pour in even after the initial "launch excitement" has worn off a bit. Give it a go and see if it works for you. If nothing else, you've displaced a few bucks temporarily - if you don't like it, send it back!!