I got this GE Profile Series  AHTR12AC for home office above garage that is separate from house. I'm in Florida and it gets hot up there. I needed something quiet. It's quiet once it reaches set temperature and in maintaining set temperature. It cools quickly then auto shifts to low fan and compressor setting for cool, quiet operation. Automatically shuts off when cooling is not needed and turns back on when temperature rises about 2F above set temperature. Often when I'm working I don't  even realize it's running. It's  not a distraction. If it continues to operate in this manner and lasts, it's a 6 Star rating. WiFi operation is also a nice feature. I can have the office cool before I go up and check remotely to make sure I've turned it off.