Finally, there’s a manufacturer that is improving design and functionality.  This air conditioner is smaller than the average unit, it’s practically silent since the motor is outside, easy to install, cools efficiently, and you can open the window to get fresh air anytime!  I bought a few of these and they are operating without issue.  BTW, terrific packaging – there is no way it can be damaged in transit with the amount of Styrofoam and plastic caps on the inside.