This pan I bought after detailed consultation in stores in late 2012. Although I did not use cold-pressed, virgin oils, leaving the non-stick property after already after 4 weeks. Every now and then baked at times something. Now after 6 months the pan is almost no longer usable. Everything is liable, on even when using a lot of vegetable oil, in the middle. Even after a soaking time of several hours, the residues must be removed with difficulty and a black discoloration always remains. In addition to these problems, the heat distribution is not advantageous. Right from the beginning I realized that the center is very hot, while at the edge of the food to not even be. The pan was always treated with care by hand and also from overheating (goes also in this model supposedly not). My quality Teflon-coated pans have always kept at least 5 years. This model is an absolute disappointment. I will make my views on the way to my local dealer, we'll see what that says ...