We thoroughly enjoyed our stay in Marc's apartment. When we arrived, Marc's parents were on their way out and were very gracious to show us how to work the appliances (the washing machine was a huge bonus) and to give us suggestions for how to walk to some of the places we wanted to visit. Marc called shortly after his parents left just to make sure we were settled in and to see if we had any questions.
The apartment is a perfect size for two people. Lots of natural light, comfortable, and cozy. The bathroom is quite large for a Paris flat. The location is perfect as well. Close to several Metro stations, restaurants, patisseries, and grocery stores.
This was our third trip to Paris but first time using Airbnb, and I don't think we'll do it any other way from now on. I would absolutely recommend Marc's apartment and will try to book with him for future visits.