Perfect apartment for large families with young children. Close (5 to 10 minute walk) to two metro stops and bus line which take you anywhere you need. Plan for approx average 35 to 45 min travel time from apartment to downtown (Eiffel Tower, etc) of course depending on where you're going. We had no problem with this and used the metro every day. The apartment was unique, our three kids (ages 12, 10 and 6) loved it even after a full day of touring the city sites, they left some energy to romp around the apartment.
My favorite thing about the apartment location is you're just far enough away from Paris city center that we felt like we experienced typical Parisian living, at least that was our impression each morning and night as we went about our activities.
Bertrand the host is quick to respond to questions or issues and speaks English fluently which made communication easy. He has a terrific FAQ and helpful tips page that I recommend be reviewed prior to your trip.
I would recommend this apartment for families.