This is one of our two units, each have the Non-Stick Surface, yet this one doesn't stay above 500 degrees throughout our lefse making process, like our other one. This one tends to go off and on, and ranges from 460 to 510 which appears to be the thermostat's (plug) fault as the ON/Off light goes out after it's at the higher temperature for awhile... and a little upward pressure on it will make it come back on, yet I've purchased new thermostats (plugs) and it doesn't change this.
The grill can be used for many other things than lefse as well.