I purchased this oven in mid October-it was delivered in November. It burns everything. You cook at the temperature you always did and things are burned on bottom but fine on top. The burner that has the quick boil also continues to cook at what seems to be a higher heat level. The glass top is so hard to keep clean it seems it draws dust to it on a daily basis. I had a smooth top before but it was black and white-this glass black top is something that I cannot think anyone would be able to keep clean-it shows every speck of dust. My biggest concern is cooking in it and on it. I need to be able to use it without burning everything. Is there something I don't know about temperatures-do i not use the temperature indicated on a recipe like I always have? Are there special pans you must use in the oven or on the range? I wish I had my 20 year old oven back. It was starting to have some repair issues but I never had these types of issues figuring out how to cook something.