This is a great apartment in a fantastic part of Paris. We stayed for a month, with our three small children, and had a lovely time. The home is located on Rue Saint Charles, between Charles Michel and Balard metro stations, in the 15th arrondissement. It contains two bedrooms, each with their own bathroom/shower and toilet, either side of a main living space with kitchen. The home is modern and easy to maintain and, as we were there with the kids, big enough to live in, rather than just have as a place to sleep.
The area is wonderfully Parisian but without being overly tourist-y. There are lots of great shops nearby, good access to the bus network (which you'll need if you have a buggy or wheelchair, as the Metro system is not accessible) and loads of parks and playgrounds.