We enjoyed our time in Olivier's place. It is ideally situated near train stations, with a direct 10-min (staircase) access to grocery stores and a 10 min walk to the ski lifts. The view is absolutely breathtaking!! Olivier is extremely responsive and easy going, and his flexible cancellation and check-in/check-out procedure is a great plus.
Still, there are a few things are good to know and plan for in advance:
The listing says that there's access to laundry machines in the building, but this didn't end up being the case because of how the payment of the machines is handled. If you count on it, make sure you discuss this with Olivier ahead of time.
The check-in procedure is well-described and really easy if you arrive by car (which we did). Essentially, you pick up the key on the way while driving to your apartment. However, if you plan on coming by public transport, you may want to talk with Olivier to see if there's a way to avoid an extra trip, for it won't be convenient from that direction.
It's sort of hard to see on the pictures, but the bathroom is dated and has some humidity issues. Otherwise, the place was very clean, and well equipped. We had a great time!