My first unit had a broken power button. The only way you can turn it on was to use the remote. Then my second unit was all banged up and it had to be returned. While I had the first unit, the performance in a 12x12 room was lackluster. It never really bought the temperature below 70 degrees, even overnight where all the lights are off. I have a 40 year old unit from a defunct company that drops the room temperature below 65 degrees within 2 hours (when it's 85+ outside). [This review was collected as part of a promotion.]