This is a well sized apartment for a family of 4 (for two children 3+yrs and parents). While the location of the apartment is not the most central it is conveniently located right near the 1 train at Vincennes which takes you directly to the Louvre, Palais Royale, Bastille, Le Marais, etc- all very popular destinations.
I would not recommend you stay with a baby or toddler that naps as there was very loud construction throughout the day starting at 9am-6pm. Be sure that this will not be the case during your stay.
Also, the host provides very minimal amenities- we were left only 1 soap pod for the dishwasher and could not find garbage bags. When we reached out to the host we were told that only the minimum is provided and the we could buy what was needed. A disappointing response. Also, do not expect the host to hold your baggage later than the check out time. :-/