Marie's apartment was great. Clean, comfortable, quiet, fully equiped (kitchen, wash, internet, etc.). Marie, herself was also very very helpful - she was able to answer a few questions about paris and was very flexible with my arrival and departure times.
Plus you can see the Eiffel Tower from the balcony which is pretty cool.

The apartment is on the floor 6 (which is actually 8 flights of stairs) so it's a trek to get up to the apartment. That said, the climb is worth it as the apartment is calm and faces away from the street.

I would stay again.