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: This trackball hater loves this product
Product review: You have just got to try one. I cannot explain why I like this one so much and hate the others. The best I could do is probably 2 words. Functionality and ergonomics. It far exceeds all others in both departments.
