works good coolinng my 5th wheel trailer when it 105-110 degrees outside the only problem i have with it is the wireless connection will not connect to my router because i use wpa2-tkip which needs a username and password and the ac's wifi only has wpa2-auto which only lets me put a password in and i will not switch to a less secure authentication  just to connect it but am disappointed as it was a part of why i bought it so i could keep an eye on usage why cant it just connect to the phone app like it does when trying to connect it to the router