This device certainly cools the room just fine.  I subtract three stars for intolerable noise.  The fan on the unit is incredibly loud even on the "low setting". There is a prominent rattle when the compressor kicks in as well.  Disappointing product. I have another GE AC unit that has since been discontinued that is impressively quiet.  Seems like GE has abandoned quality product in favor of price points. I would pass on this unit.