Henri and Diane offer a clean, small but efficiently laid out bedroom in their apartment for their Airbnb guests, ideal for one or two travelers on a short visit (we were there 6 nights, which may have been a little long for such small quarters, depending on your particular needs for space). The double bed is quite comfortable, although, like most beds in France that we encountered, it is low. Apart from a portable hanger rack, there is no storage for clothing. The apartment is on the second floor of an older, but well-kept building, and it boasts a tiny elevator; big enough for two people without luggage or one person with. You may need to make two trips if you have multiple bags or multiple travelers (or, as we did, one can take the stairs).
The rest of the apartment, including kitchen, shower, and water closet, is shared, and we had no problems or conflicts with Henri or Diane over use of any of the facilities. On the contrary, though we had looked forward to spending some time with our hosts and talking with them about Paris and their own experiences living there, we saw little of them. They usually were out at work or at their own social events, and when we were all in the apartment together, they often stayed in their own bedroom. However, they were very friendly when we saw them, and Henri was particularly helpful and informative about the area when we first arrived, and he responded promptly and helpfully to other requests for information. Henri's instructions for finding and getting into the apartment were very detailed and easy to follow, and he was there to greet us when we arrived.
The location in the 13th arrondissement on the left bank (but just south of the 5th) is excellent, with lots of Paris sites and destinations within walking distance and others available by metro or bus, whose stops are just outside his door. There are OK restaurants in the immediate area (are there any bad meals in France?), but you can easily reach better and more popular eating areas on foot or by metro or bus.