*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: Product expired two years ago!!!! Product review: I ordered Phos-Flur about two months ago and I was quite satisfied with the product. Since I moved to an area where water is not fluoridated, everyone at my family started having cavities, some of them for the firts time in their lifes.Sadly, I placed the next order from John Alexander Upperman through Amazon, and this order came in a different bottle, tasted different, and more importantly IT IS FROM A LOT THAT EXPIRED IN 2010!!!Being this a health product intended to be put in one's mouth, selling a product that's expired years ago is dangerously irresponsible. I used it a couple times before noticing the expiration date, I hope it doesn't have any adverse effects in my health. At the very least, it is likely not to be too effective given how quickly the active ingredients react.
**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: Great reading Product review: Italian book with amazing short stories that are funny, interesting and thoughtful. I did not want to stop even after I reached the end.
**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: Meets my needs well Product review: I've had this unit for about a year now, and have not been disappointed. The controls are well laid-out and the gages are easy to read. Its output handles the air tools I need (narrow and medium crown staplers, roofing nailer) as well as helping keep the farm machinery free of dirt and muck. The amperage needs are such that you can run this fellow on regular household circuits (15A). It hates extension cords, but is light enough to move from room to room if your hose isn't long enough to reach. A big plus for me is it works just fine in winter, which around here hits 30 below with annoying regularity.
**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: Dave Lftin's Expert handicapping; Winning insights into Betting... Product review: I like to handicap the races with a system. This book didn't have any so for me it wasn't very useful.
**Answer**
