I am cooling about 400 square feet and although I have the unit set at 62 degrees , it usually  keeps the room temperature  between 64 and 66 degrees when it's over 80 outside, although it hasn't been over 85 yet this season   I really like that the fan actually shuts off when in auto eco mode when  it reaches desired temperature  instead of  it running all the time . So far seems like a pretty good unit