I'm giving it 4 stars for now because it hasn't been really hot yet (70's) and I only had it a week and used it once. It has been a little humid. So I used it one night to sleep with a little bit of relief from the humidity. I bought this early for the hotter days/months ahead towards the end of summer. One thing I wish was better is the exhaust hose could be more flexible to angle the unit in any direction towards your preference in the room and furniture.