My family and I were very happy with the apartment. When we got there, the concierge, Maria, welcomed us. She was very friendly and anytime we had any questions she was there to help us. The apartment is in a great, quiet and charming location, near several metro stations, to a small grocery store where we bought everything we needed, near cafes, pharmacies and even to touristic locations if you don't mind walking a little.
The apartment was very clean and has a nice shower and bathroom with enough nice towels to all of us. Like most of the apartments in Paris, its a relatively small place but enough for a family of four. We weren't expecting anything bigger.
In general, it was perfect for us and we would definitely be back. Highly recommended.