Worked well for about two days. The unit is about 7° off from what the actual temperature is, which is really frustrating and hard to know what to set it on. This unit sits in a 150 square-foot building that is insulated. However, despite its claim that it will heatcool a 700 square-foot room, it can’t even keep up with 150 ft.². I noticed a lot of clicking sounds and issues with the unit when it started to get cool outside. Contacted the manufacturer and they offered no solution. Tonight was the first time we dropped beneath 55°. Came out to the building this morning to start working and the building is freezing cold and the unit won’t even run.manufacturer again is absolutely no help. This has been very frustrating and I am extremely disappointed. This was entirely too much money for this to happen.￼