It was hard to get up and running. The thermostat adjustments were way off. When I called for help with the 800 number in instruction booklet. I had to leave a message and no one returned my call. We did finally get it running with quite a few adjustments. But I'm not too confident that it will keep working.
I love this product. Hearts up my ice cold meat locker of a bathroom quickly so i can shower in comfort. Just need to get 2 more. One for my refridgerator of a bedroom and the other for my office/ greenhouse/ craft room.