The quartz has features I find advantageous, such as the two function switch for warmth or heat. Winter rarely comes in suddenly, rather in stages-right now in late October, warmth will suffice. Another feature, the dial thermostat offers the assurance that when desired temperature is reached, the unit automatically shuts down. It also rests flat and securely on plush carpet. Space prevents me from a full rave- sufficient to say I'm comfy and happy!