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 didn't do what it was supposed to do
Product review: I've heard that some people have used this product with great results, but it did absolutely nothing to eliminate a hum problem I was having. So I gave it to a friend of mine who is a pro guitar tech to see if it might work for him.
