good experience. the host was at the apartment to meet us and on check out. good information given. Only minor point was that initially only one set of keys were given and we asked for a 2nd set (no problems). But in a large group, could ideally do with a 3rd set.
To get to the apartment you have to climb 6 flight of stairs each time which for us was no real issue but be aware if you have any mobility issues. There is a tiny lift but it was slow and on occasion didn't arrive / work well. Amenities in the apartment were great and a very Parisian apartment.