I received this as a gift and loved it at first. After a few uses, it no longer preheated with the lid closed, but shuts off instantly. Now I have to let it preheat with the lid open, which first of all takes forever, and then when it is almost at the right temperature it shuts completely off so you have to turn it back on and eventually the second time it reaches the heating level and then it will stay on with the lid closed. Takes absolutely forever just to hear it up for use this way.