We installed this unit and a 10 x 13 bedroom and I have found from the start that it is quite noisy. During the day you don’t notice so much but at night when there’s less ambient noise you really notice, especially when it switches from fan to AC and back again. It does an OK job of cooling the room - we have to have it set at 65° to keep the room at 70°.  That might be because it is so hot in Houston and it’s the best it can do.