Speak up, I can't hear you!
On the noise issue; it's only when shutdown with AC electrics on that it is noisier realtive to other similar types, when up and running it's not particularly noisy (qualitatively speaking anyway). At least you haven't got a couple of Makilas on top of you!
It's a pity Sikorsky didn't plant a couple of Moles in the Eurocopter avionics design department!