Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Quality of diaper decreasing as years go by

I have been purchasing these diapers since Sept. 09 and the thickness of the diapers have been decreasing over time. When I first purchased the diapers they were heavy weight - now they are like thin cheesecloth. I called Gerber only to be told the diapers have been the same for many years and I was the only Mom who complained on the quality control of the diaper. I was extremely disappointed with their response and their product. Its sad when a company doesn't acknowledge the truth.....