I Plugged it in and tried a piece of toast with the shade setting of 4. It took a long time, too long. It was extremely hot on the sides front top and back. The cabinet stayed hot for a long time. Too hot to the touch. It definitely would have burned ones fingers.One could not even open and close the door without touching the hot surface of the glass. Bad design.I tried another slice of bread for toast with just a shade setting of one. Still the case was just as hot.I'd be concerned about the power cord coming into contact with the hot surface in the back, melting the insulation, which would allow bare wire to come into contact with the case.I can't believe they put this product on the market. I'm returning it.