3 of us visited the End Barn on Ferme Noemie this weekend (early June) and had a great stay. The apartment is one of 3 in a single building and is situated at the entrance to the owners camp site. The apartment was a really good size and was very clean. You're expected to leave it as you find it and we found that this worked well and I think is fairly factored into the price, which we all thought was very reasonable for 4 nights. We were there for a long weekend of cycling and the secure bike storage was a fantastic benefit. We were also allowed to use the camp sites shower block on the last day, after we'd checked out, which was brilliant as it meant we could go for a final ride before our flight home.
Location wise, if you're looking to visit the mountains, you couldn't be better positioned, especially if you're bringing (or renting) bikes. From the apartment, within 3km in either direction you are at the foot of Alp D'huez (right) or the Col de la Croix de Fr/Glandon to your left. Crossing the Glandon takes you to Telegraphe, Galibier, Lacets du Montvernier and more. Melanie, the owner, was a great host and had some brilliant local knowledge, including an excellent ride from Oisans up to Villard Notre Dame and Villard Reymond (we evidently went the hard route, with dark tunnels, but well worth it for the views!).
I definitely look forward to returning and would recommend this venue to anyone. Thanks.