I shared Marianne's apartment with two friends when we were attending a convention at the Parc de la Villette. The location was outstanding for our needs...walking distance to the park, nearly all of it along the canal. The apartment itself was very clean and comfortable (big couch, BIG plants thriving in a sun-drenched living room), and (unlike a lot of "3 bed" units listed on airbnb) actually had three separate beds, each in its own bedroom. Marianne, as a host, was very laid back and easy to work with regarding our arrival and departure (i was the first of the three to have to fly back to the US, but she made it easy for my friend to handle the key return/check out). If i ever have more events in or around the 19eme, I'd definitely try to stay here again.