Numerous issues, most notably with the paneling system. A regular sponge is used to irritate and itch them. It is likely that they are for dishwashers. (Yes, and there are a lot of little things that could be improved. In addition, a significant amount of fat is added throughout the cooking process. There are five different preparations, but there is no coating; the regular soft sponge has scratches, chips, and scuffs instead. Terrible quality!