Olivier is a Five Star host, very friendly, speaks many languages and will do his best to make sure you know what is around and how to get whenever you want.
His place was a good way to save some money to try nice restaurants in Paris.
However....we went with a couple friends who refused to stay in the apartment because they felt it looked too old. It hurts me to say this, but I have to be honest with the Airbnb community. If you are going with small children, you probably want a nicer neighborhood, since there are hookers and thug-looking-men in the streets (lots of bars around that close late night). As well, the place is not suitable for people with allergies ( I don's think whole Paris is).
I believe he can make this place better easily so give him a chance!