I bought these for my wife for Christmas less than 6 months ago. I thought they were a tremendous deal at the time. However after spending time using these pots and pans we both thoroughly dislike them!We heat them and cook at medium heat per the instructions and we properly oil or butter our pans when using, to no avail.We have to use sponges to clean them because anything else will scratch the surfaces. We found that Barkeeper's Friend works well, but I don't feel that I should be having this sort of issue with these pans.