Nina's apartment was fantastic and located in a great location in Le Marais. Grocery stores, restaurants and shopping were abundantly available right outside our door. Many attractions, including the Louvre, Musee D'Orsay, the Eiffel Tower and the Arch de Triomphe were close. Public transportation is close (both buses and metro).
It is a small apartment overall, but fit our family of four perfectly. Nina was responsive and was flexible.
There is a bar below the apartment. It did not bother us too much but it is noteworthy that it is open until the early hours of the morning and there is music playing.