I feel as though the quality is not what expected. I am an avid cook and wanted to replace my 20+ year old calphalon that I loved. I am well aware of how to use stainless steel. These pans have stained after just one use, discolored and had food stick.  Again, I know how to use stainless as I have cooked with it for over 20 years and have never had these problems with my Calphalon.