This summer is humid and hot.  I bought this 6000 BTU for my bedroom.  The unit cools the room from 90 degrees to 74 degrees in about 10 mins (240 sqft).  the remote control and sleep feature are two of my favorites.  Installation was very easy and the unit does not put much stress on the window frame.  I gave one less star because it is slightly noisy to my taste. [This review was collected as part of a promotion.]