So I got it about a month ago and couldn't be happier.  The compressor is silent unless its going full throttle. (thats only if it was off and room is really hot) For the most part compressor runs continuously but at a low speed and low current draw. The fan is really quiet and speed changes are so gradual  you wont notice. The unit doesn't drop in the window but you install the outer shell that weighs just about nothing. Once its secure in the window you slide the Ac in like a cartridge. Super safe install. Only a few cons. The side wing walls the retaining clip on the bottom is kinda weak. What i want is to have runing data on the APP like power consumed, running speed and downloadable history.