Beautiful set! The non stick lasted truly with daily heavy use for about 6 months. Then husband scored it with metal spatula to the large frying pan  (the horror!) and non stick ceramic coating was compromised. I treated it like a cast iron though and oiled it,  super heated, then wiped “dry” (no soap, just oil wipe) then nonstick property returned almost fully (but beautiful copper-toned finish blackened). If you never use metal like instructions say, and treat kindly- no scouring sponges, I imagine they’d stay nice indefinitely.