I'm going to write a review anywhere I find a place to write it so people will know not to purchase this oven. This is the only bad review I have ever written but I don't want others to deal with what I deal with daily with this oven. When we bought it a couple of years back I was suspicious of it not holding the temperature. I called the store where we bought it and they sent a tech our who spent at least an hour here testing it. He assured me it was working properly. But as the year went by this is what happens. I preheat it to the desired temperature. Tonight it was 450 to just brown pizza dough for a pizza I'm making. When it was preheated, I put the pizza pan in with dough only. I know now that when I put the food in the oven to immediately set the temp again just to be sure its accurate and normally its 20-25 deg less than it should be. Within 10 mins, I check it again and its down to 375. I put in 450 again and this is the game I play the entire time the food is in the oven. I constantly have to check the temp and reset it to be sure it stays where I put it. Drives me crazy. Don't buy this oven!!!