We loved the location and how peaceful the apartment was. It is a good amount of space for the city and Jean-Françios, was very accommodating, even providing a book of helpful information, a supply of travel guides on the shelf, and directions to and from the airport.
It is like living in an apartment. You will hear the family above getting ready for work in the morning, but it was not at all bothersome. Rue d' Montorgrueil couldn't have been more convenient; everything you could need right outside your door. The restaurants we tried on the street were only adequate, but the bakers, cheesemongers, pastry shops, grocers, and wine merchants were fabulous.
Note that while the apartment has a washing machine, it does not have a dryer, so it is advised that you take into to account time for air drying (rack provided). Jean-Françios asks you not wash after 9pm, which, I believe, shows his respect for his neighbors and not just his clients.
We would definitely stay there again.