It is not particularly quiet. But not very loud either.
In practice, i.e. when watching a film etc., the sound from the fan is not noticeable.
The settings are very simple and intuitive.

I can only agree with the previous speaker. I've had the projector for a good year now and I'm completely satisfied. Sure, you can hear the fan when nothing is playing, but whether I'm watching a series or a noisy action thriller, I don't even notice the noise.