I just purchased this item because my oven has been broken for ages + I prefer to make my own pizzas. The concept of this item is wonderful, but when I got it home and cranked it up I discovered one very major problem. It doesn't cook the center. I made a 12" + then another day a personal 6-7" and it doesn't cook the center. I tried to push the pizza a little off from being centered so the middle would cook, but then the tray ends up with a serious tilt/slant and that just doesn't look safe. When it cooks the pizza it cooks the first 2 or so inches from the outside very well, but the closer you get to the middle, the less it is cooked. The upper arm/heating element is just not long enough. It doesn't reach over the center of the pizza. So... It appears that I am the only one that just can't see how this will work. Good luck to you!