Stayed for 8 nights. Perfect location if you want a quiet area within one block of the Porte Dauphine Metro & Avenue Foch RER. A few blocks away are a couple of cafes and not far from there you're into the heart of the 16th Arr. Also, for anyone going to a conference at Palais de Congress, it's only a 15-20 minute walk...which is what I did two of the days.
The apartment itself was a nice layout, comfy and homey. The bed was super comfortable!! The shower was great, but if you have a problem stepping up or down from a platform height it may be difficult without a railing. I made dinner a few nights and ate other meals there, which was easy with plenty of dish ware and utensils. The washer/dryer combo was convenient, though the dryer takes a really long time.
Although I didn't meet Antoine, he was very responsive to various questions I had during my stay -- whether about the apartment or area.
Bottom line...I wouldn't hesitate to stay there again!!