used for a monh now, seem real strong and durable. the reason i bought them was we already had a 12" pan for over a year and has held up very well.you have to learn how to cook in a non-stick pan, once you do you will find out these are as good or better than any other non-stick pan. over the years i always got traditional non-stick pans way too hot and ruined them. these have proven to take higher temps better. but even with these i no longer let my pans get to hot. so far really pleased