I love my oven! I have been baking almost non-stop in mu free time. It heats up from 0 to 400 degrees in 4-6 minutes! I love the way it beeps when it has heated to the programmed temperature. I can actually set the time for the recommended time and whatever I'm baking is done to perfection. I live at above 5000 feet with my old oven it was hit and miss, but not with this one.