Too many great things to say to try to organize my thoughts.
Location- excellent. On a quiet residential street but just around the corner from a major road. Just blocks from the Pompidou Museum, Hotel de Ville, and Norte Dame. Across the street is a bakery. Next door is a wine bar with yummy sandwiches, meat and cheese- and don't worry, there was no noise from it either!
The apartment- fantastic. Big enough for 2 adults and 2 young kids. Contains everything you need if you want to cook, a baby bed, high chair and baby bath on request. A small courtyard outside with plants was also a nice touch, as well as no neighbors so the kids could be loud.
Stephane was a friendly and polite host, easy to communicate with flexible and helpful.
I will certainly recommend this place to friends and would definitely stay again if we visit Paris again.