Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Good Idea Gone Bad

These slippers are a total waste of money. It's too bad because it's a good idea and could have been effective. A few more cents spent during manufacture could have made the difference. Talk about quality control. I wore the slippers for approx. half and hour while walking on a tile floor in my house. The cheap plaid material used for the sllipper's top quickly pulled loose from the stitching to the bottom mop section. It appeared to be a combination of slippery fabric and the material being too close to the stitches so that it EASILY pulled out. Buyer beware.