This was a perfect little apartment for myself, my husband, and our two teens. There was just enough space, and we loved the neighborhood.
Sebastien was very helpful and easy to communicate with, and gave lots of tips for where to go in the area.
Not a lot of privacy between areas (no solid wall between main bedroom and the room above it) but we worked it out :)
Most of the time we didn't mind the stairs, and the elevator was very helpful after a long day of walking, or when carrying a lot.
The metro in Paris is super easy to use, and the closest stop (Filles du Calvaire) is about 2 blocks away.
Highly recommend this apartment for living like a local during your stay in Paris.