I am loving this smart air conditioner , it was not to hard to install, it was a little challenge to connect to the TCL app, it is alot easier to connect the unit to the alexa app instead of the tcl app, but the unit works amazingly and Cools the room off alot fast than the units in my other rooms, and the best part is telling alexa to turn the thermostat on and it starts right up and starts cooling the room down