I bought this AC to replace a 12 year old window unit (different brand) that died, and it's great! It was easy to assemble and install, and I really appreciated all the extra bits of insulation that came with it. It's doing an excellent job of keeping my third floor (read: really hot in summer) 220 sq. ft. room cool and comfortable. And the remote sensing feature (a temperature sensor in the remote to more accurately read room temperature) is great!