Sébastien's place is a very charming "chambre de bonne" on the sixth floor of a historic building in the Marais, a great location. (Although I've lived and studied in Paris, other travelers might be surprised to have to use a shared toilet on the landing, outside the studio.) With luggage, the elevator is a big help. While I didn't meet Sébastien in-person, he was very proactive and helpful via SMS and AirBnB messages. As a result, access to the keys and studio was very simple and straightforward. The chambre has a great "lived-in" feel and was ideal for one person. I'd happily stay there again.