This heater does a pretty good job at heating, but it also has its drawbacks. Performance This heater does a good job of heating up a room quickly, and when the thermostat is set correctly it can shut off at the correct time to stay on all night without getting too hot. Ease of Use The thermostat makes this difficult to use, but otherwise it is pretty simple. Design The design of the thermostat switch needs improvement. Instead of being base on specific temperatures, it depends where the knob is and when it is turned down. To set the thermostat, you turning all the way up and turn the heater on. Then when the room reaches the desired temperature, you slowly turn the knob down slowly until the heater shuts off. It will then run until it reaches the temperature that it was set on and shut off automatically when it is warm enough. But if you turn it off at 72 degrees, then that does not mean the knob is always set at 72 degrees in that particular position. Our son will occasionally play with the knobs, and if we set it back to the same position where it had been, then it will still not shut off at the same temperature. So we need to go through the whole process of turning it all the way up and the down when he room is the right temperature. This heater could be much improved if it had a simple thermostat switch that could be set to a particular temperature.