Quiet (for an air conditioner) & cools the room very quickly
4/5
It cools the room down from 24 to 19 degrees extremely quickly (in about 10 minutes). It's amazingly quiet when compared to my previous air conditioner (which sounded like a pneumatic drill). I would say it's about the volume of a loud fan. It's very heavy (lugging it upstairs was difficult) but can be pushed on wheels around the floor. It isn't particularly easy to set up - getting the end tubes to slot on to the funnel which directs the hot air out the window is extremely frustrating and it took me a while to work out that you need to put your hand through the end tube, grip the funnel and then pull it through and into the tube.