So far so good. Low to medium cooking heat best.  I am using non metal utensils mainly. I used a serving fork in the loaf pan and it left a tiny mark, but it seems like it didnt do any damage, which is odd. Im monitoring it. I fried eggs in the square fry pan it is amazing. It said in directions use a small but if oils first tome used. It was amazing came out smoothly off the pan. I am impressed.