I too was initially delighted with my Ecopan, purchased because I wanted a pan free of dangerous chemicals. After a few months I found that it was marked and I couldn't remove the marks, and food was beginning to stick to the pan. At that point, I suspect I did the unforgivable and used a spray, not realizing I wasn't supposed to. The pan continued to deteriorate, so I contacted Paderno. They were extremely helpful and replaced the pan. I was diligent in following the instructions with the new pan--never washed it in the dishwasher, always washed it with soap and a cloth, always used plastic utensils, no spray--to no avail. The same thing happened again. I still use the pan, but it's very badly marked, and I always have to use oil in it. I'm reluctant to contact Paderno for another replacement . . . I can't imagine why I wouldn't have the same problem again. Very disappointing.