I am not in the kitchen trade, just an enthusiastic home chef. My last set of pans were of decent quality (Calphalon) but after 10 years or so, they were looking worst for wear. I decided on a stainless steel set (D5) and I am extremely satisfied with them. Not only are they superbly well made, they do actually make food taste better. I expect these pans to outlast me now, I'm sure they will.