Curtis Stone cookware

I have his pots and pans and bakeware. Only problem I have is largest flat pans do buckle at high temps. I mostly use my countertop oven and the pans he has for those are perfect. I almost never use a high temp for pots and pans except to boil water for pasta. I wait until they are cool to clean and I never use metal utensils unless they have a silicon edge. Also my color (grey) is still the same color as the day I bought them well over 8 years ago.