We had a few minor issues with the flat with the oven/microwave not working while we were there and the feeling that the place lacked the love and attention of the other Airbnb places we'd stayed in. These minor issues though are nothing compared to the flexibility and location that the apartment offers. The Marais is a wonderful place to stay and explore. The local bakeries are incredible and the Thursday market at Bastille offers wonderful fresh produce. The whole area has a wonderful feeling and the fact that your only a 10 minute stroll to one of several metro stops means you can be anywhere in a flash.
The apartment is just as you see it. The second bedroom does have a low roof but that made it an exciting and different opportunity for our children. The shower was one of the best I've had in my time away and as Paris was freezing the hearing was also excellent as we were never cold.