This portable A/C works great, we purchased it strictly for use in the bedroom which is always warmer than the rest of the house.  Our problem wasn't that it didn't cool, the problem was the noise, not annoying noise just loud enough to keep us from sleeping.  If I was using this unit in a room other than the bedroom, I would give it five stars. Had to return it and usual Wayfair's customer service and return policy is like no other company, absolutley the best!