Installation was fairly easy, though we did it with two persons to be on the safe side.  The AC unit sealed much better than previous window units we have installed - less outside hot, humid air to challenge the unit within the house.  The design does make it sound odd from outside, but inside is nice and quiet.  My favorite feature is that this connects to Wifi.
** Pro-tip:  after installing the app, be sure to pair with the A/C unit on your cell phone's Bluetooth - this allows it to connect to the app.  Instructions keep telling you to look for the wifi password on a non-existent sticker on the unit, but that is not needed.  Just pair with Bluetooth on your phone for the initial setup on the app and you'll be good to go and can monitor the unit from wherever you are and also set up schedules to turn it on and off at certain times and control what temperature to run it at during those times.