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: Sennheiser PXC-250 Very Disappointing
Product review: I had very high hopes for these headphones for my 20 hour trip to Brazil, but after they failed to lower the whine of the vacuum in the house, or the chatter of TV, I became suspicious of their performance. I then tested them head to head for sound performance against my standard Walkman headphones, and they sounded tinny and cheap verus the rich sound of the OEM Sony Walkman headphones. I now have them wrapped up for a product return. They aren't worth carrying on the trip to Brazil.
