You are considering whether to buy a product. You look at the reviews. Would the following review decrease or increase the chances of you buying the product?
Review title: it should get a negative rating
Product review: This is the worst networking book I have ever read. There is nothing worthwhile in the book. In fact the authors best advice is to go and take the Novell certified courses. If I had the time to do that I wouldn't have bought the book!
