I truly recommend staying at Juliens house. It is a quite and nice room, separated from the rest of apartment, which gives a full independence in organising the stay. Within a walking distance there are 3 grocery stores in the area. Intermarche opposite the building, on rue de Lewis - Carrefour on the right and Auchan on the left. Going down rue de Lewis toward Villiers underground station, the street turns into a pedestrian zone with small local cafés, pâtisseries and boulangeries (bakery :)). The area is quite, elegant and architecturally very french.