Instruct: Classify Amazon reviews into positive or negative sentiment
Query: don't waste your money

although a viable concept, these mats will not serve you well. like so many others my experience is the same: they developed splits in less than a year. i sent the required photo under warranty and the claim was denied. i usually wear slippers or am barefoot when cooking. now a year and a half later all four corners on my two mats are curled up and have turned into a constant trip hazard. i should just throw them out, but keep justifying their presence because of the exorbitant price i paid for them