Like a microwave oven on steriods. My first impression was amazing. I had some frozen battered fish to cook. I chose Airfry setting and pressed start. The iven gave me clear instructions on the panel. Place tray on table.... reheating in microwave mode..... Place food on tray a d 4 minutes later turn over food.... I WAS IMPRESSED WITH THE SPEED AND QUANTITY. IT heats up left overs like pizza to as new as fresh. One of the best products I have seen. Thank you Breville