We sleep in late, and we were woken up around 9:30/10:00 by some hammering and also vaccuuming in the building. I suspect the sound-proofing isn't superior, but we never heard any of the other guests.
We stayed in an apartment, in the building across from the hotel. The apartment exactly matched the pictures, except for a newer TV, and had a great view from the balcony. It was very clean and well stocked with towels, kitchen utensils, salt/pepper, coffee filters, etc. Wi-fi was being installed (they bought a new router while we were there), and we could access it from our balcony. It was quiet and within walking distance of stores, restuarants, and you could walk to the base of the mountains or drive 5-10 minutes to access hiking and gondola rides. It was also very reasonably priced. We didn't interact much with the stuff, so I can't comment on that aspect. I would definitely reccomend it!