I have these 3 and we are happy with them and warranty. I have had some issues with cookware they replaced.  Careful not to use metal spatula or spoons
They will mark cookware.  The cookware is super!  Love it
The wok is useful for all things.  I do have some things stick but it is ez to clean up. Gorgeous cookware! Gave it a 4 because of marks left with light use.  From metal.2