I love the clean look of this heater and that I can turn it on/off via the app. I have it in a small (approx 260sq ft) well insulated outbuilding that my wife uses as a remote office and it’s great to be able to turn the heater on in the morning and see what the cottage temperature is and then turn on the heat if needed. I found that during the winter it was pretty slow in heating the room (about 2 degrees an hour).  I have an older, similar output, heater in the room as well and find that if I turn them both on for the first hour I can warm the room up by 10 degrees in about an hour, after which the Phoenix does a great job of maintaining the room at a comfortable level for the rest of the day.