Question: 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: War With Gandpa Product review: I like this book because it is excellent. It was a really good book. The part that I liked the most was when Grandpa did a very long dirty trick to Peter. And Peter wasn't very happy. Grandpa liked what he did. I think you should buy this book because it is exciting. It tells you alot of funny things.
Answer: increase

Question: 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: Useless Product review: I am a watercolorist and I recently began working with pastels. I wanted a book that would help me choose materials, as well as demonstrate techniques I could use in getting started in this medium. I found this book useless. I wish I hadn't bought it. The organization, the lack of demonstrations, and the general visual quality of the book was not inviting. Very disappointing. Go with something else.
Answer: decrease

Question: 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: Broke Down after 8 Months Product review: Bought this less than a year ago and it broke down. Used it at home for my two kids who used it for doing their homework. Disappointing. Definitely not heavy duty.
Answer: