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: great! Product review: For the price, they work very well. I priced them locally and they were twice the cost, so I am happy.
increase

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: You have to be kidding. Product review: This guy must have been doin too much LSD and crack way back in the 70's. Go to his website and you will already know this guy is a psycho. This guy needs some serious help. I don't even know how this book ever made it on Amazon. The guy didn't even seem to use an editor, there are so many mistakes.
decrease

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: may be the worst movie I have ever seen Product review: Where to begin? The plot is terrible, the acting is uneven, and I do not understand what is likeable about any of the characters, nor what motivates them. The actor who plays Chon looks like he is on release from a soap opera contract and John Travolta just makes everyone feel uncomfortable. Blake Lively is so vacant that her doe eyed stares only carry her poor acting ability for the first five minutes of the film. This was a poor attempt at pulp fiction for the big screen and would have been in better hands with Quentin Tarantino than Oliver Stone given the campy subject matter.The book was better; any book is better.
