The indoor unit is very quiet as is the outdoor unit. I have only tested the heating mode to make sure it works but the cooling mode works very well. We had one day when the outside temperature was 43 degrees and I have the unit set to 24 degrees which it maintained easily. Some air conditioners have complicated remotes with a whole raft of features most people will never use. The remote is simple & easy to use & you don’t have to point it directly at the unit. The useful features from my perspective are the wide and long air throw functions and the iSave function which I keep as the standard setting & if I decide to change any setting I just have to press this button & it returns to standard. I don’t use the timers or a special vane settings but do use econo-cool to save energy once the whole living area has reached the desired temperature. You can also get a card installed and it can be controlled over WiFi from a phone & can be turned on remotely so the house is cool when you get home.