I recommend Bijou hotel without a second thought! It' s a very nice hotel, with spacious rooms and a very tasty breakfast! The coffee that was served was great! Above all, Matteo, the owner of the hotel, is really helpful and have helped us to solve a problem that we had with booking.com. The only disadvantage is that the free parking area is a bit far, so you had to walk about 5 minutes.

We do agree, rooms are quite big and the hotel is nicely located. However, we had the bad luck to have booked half-pension (breakfasts and dinners included).
Dinners were a pure catastrophy, nothing fresh, only canned or frozen food! Soooo far from the myth of the Italian food! They even managed to spoil the pasta, really weird!
Warm dish for example: defrosted and half fried hamburger+potato purée (from powder).
Disastrous!!!

The whole Aosta valley is an overlooked gem, with wineries, hiking, castles, and friendly, laid-back residents. We loved our visit there and will certainly come back. When we do, I would certainly consider staying at the Bijou again. It's located on the pedestrian-only central square of Saint-Vincent. Our sixth floor room overlooked the square, and with the windows thrown open we enjoyed the sounds of music, laughter, and the general bustle of daily life in this charming Alpine town.

Our room was reasonably spacious (by European standards), comfortably furnished, and the staff were friendly and accommodating.

Very nice hotel located in the centre of St Vincent (just opposite the Irish pub :-) ) Very comfortable rooms with lovely views. Staff very friendly and helpful. The cost of the stay was very reasonable aswell. Only area which possibly could be improved upon was the food in the restaurant, after a few days it was very samey. Would have no hesitation in recommending this hotel though.