We really liked our stay at this place. It is probably not the best neighborhood, but the metro and bus are just in front of your doorstep and when you pass the front door, the apartment building is really nice and quiet. The apartment itself is quite spacious actually, with nice big bedrooms. We stayed with the four of us (2 adults/2 little kids) and had enough room to really relax. The kitchen is convenient, we cooked twice.
There is a supermarket just across the street.
We booked very last minute and Fabienne was the only one who did respond very fast and was flexible in renting her apartment on such a short notice to us. She waited for us (despite work stress) and explained everything brief but good. She even put up a baby bed for our little girl.
If you want to spent a few days in Paris, this is a really nice place to stay!