I purchased my original set of Circulon and two additional specialty pans in 1990. I noticed that lately when I was cooking, my food was beginning to stick to the two specialty pans and I could not figure out why. Then I did the math. Those pans were over 30 years old, LOL!!  I cook a lot and I am amazed they lasted so long and continued to cook beautifully. So I treated myself to this three pan set and an additional two specialty pans. The first time I cooked eggs on one of the new pans they basically cooked themselves. I would say that I am beyond a satisfied customer and huge fan of Circulon!!