We had four lovely days at Marie's apartment. If you don't mind staying in someone's "real" house, this is the place to be. It is a great location near transport opportunities such as Gare du Nord and the Gare l'Est metro station but also beautiful places such as the Canal Saint-Martin. You'll find everything you need in the apartment, incl. a great music record collection, rain shower and a well-equipped kitchen. And there are a lot of great restaurant opportunities in the neighborhood as well. 100% would recommend. Maybe one small thing, the bathroom doesn't have a door or curtain so this accommodation is maybe not the best to visit with a colleague for example if you want some more privacy.