I've had many window AC units and this one is by far the best.  I am amazed how relatively quiet it is.  It does not clunk and dim the lights every time the compressor cycles on.  You do not hear the constant whine of the compressor.  The only sounds are of moving air through the blower, and occasionally a low sound from the compressor.  There are times I have to look to see if its even turned on!  The unit puts out great cooling and moves the air in my bedroom.  My only complaint is difficulty getting the Wi-Fi to connect with the app.