Ours was noisy. This was one of the few things that were not up to par. After several nights of loud vibrate-the-whole-room and sit-us-straight-up-in-bed noises whenever the compressor went off, maintenance finally came and "repaired" it. They did get rid of those noises, but we ended up with a continuously loud fan noise. I'm sure it should have been quieter. But at least continuous noise was easier to sleep through than sudden loud compressor-kicking-off noise we had originally. I guess if we had been a little more pushy, we could have had maintenance come back again.