I stayed at Eleonore's one room apartment for a month: the apartment is tiny but for one person is perfect even for a long period, it could work for two as well for a shorter one. It's clean, comfortable and cozy. The location is perfect, in a very elegant, safe and well located area of Paris from which you can easily access all other districts in a short time. Eleonore is very friendly, welcoming and patient! She answered immediately to any question I had. The toilet is shared but close to the room and since there's a private sink and shower it wasn't that big of a bother for me. Only thing to notice as written on the ad there is no kitchen except of a boiler. Since I had friends in the city even this wasn't an issue for me, but for people staying less time the neighborhood is full of places where to eat nicely and cheaper ones for take aways.
Overall it didn't disappoint my expectations, I had a lovely time and it's a 10/10!