We stayed here for a month in the spring with 6 family members - 2 grandparents, 2 parents, and 2 children (ages 5 and 2). For a large group or a family with children, look no further! The owners are wonderful and have thought of/provided everything, even car seats, a high chair, and a pack and play. There also are shutters that black out all the light which was amazing with jetlagged kids! The house is clean and well stocked with anything you need to feel right at home (extra sheets/towels, everything needed to cook meals, toys for the kids, instructions on all of the appliances regarding how to use them, etc.). The house is arranged well - a bedroom on the garden level, one on the main floor, and 3 upstairs so that everyone can spread out. My husband and dad worked while we were there and were able to easily find space/quiet to do so. The gate locks so the children can play outside unattended and the house is walking distance from 2 grocery stores, a playground, and the hospital (luckily we didn't need to use it but it was there).
The neighborhood, Kremlin-Bicetre is outside of the city so you'll probably be taking the metro into the city each day (very easy); we needed more space than our budget allowed in center city so this worked out wonderfully and we would stay there again. It also has parking spots if you'll be renting a car to explore anything outside of Paris which we also did.
There is a small hill that you have to walk up on the way home from the metro (about a 10 minute walk to/from the metro with small children) and the staircase in the house can be a bit tricky for little ones (we made a rule that our 2-year-old always had to hold an adult's hand when going up/down) but those were really the only downsides.
Overall we had a FANTASTIC month living in Paris and we would absolutely recommend this property and stay here again. Thank you, Quach!!