First off, I’ve owned many toaster ovens over years and by far this is the best. Makes the best air fried panko fried chicken ever. Fries are crispy. No need to adjust for preheat time  as it heats up quickly. Just put the food in and go. The quirky things are the volume control for the signal when done doesn’t seem to work. The other thing is that the preset times and temperatures are too high and need to be adjusted manually or the food burns slightly. Once adjusted the food comes out better than anything.