This a pretty cool AC unit. The inverter makes it energy efficient but the temperature it reads is not necessarily the temperature of the room. Im using a 10k btu unit in a 140 sq ft room with decent insulation. When set to 64 degrees, it is really about 66 in the room at the coldest. Also, The app has a power draw feature so it tells you how much energy you are using per day and at that moment in time. The weird thing about this unit is it has a giant hole on the bottom which serves no obvious purpose. So I covered it with one of those fruit fly meshes and tape. Overall. I'd recommend the unit.