This place is very close to métro, and easy to go central Paris. the host was kind and helpful. But you should consider that it is very old house, not modern. It is quite nice, but not the best if you're searching for a cozy place like your house :)
1. Since there is not elevator, it will be hard to lift the baggages :) the staircase is very narrow.
2. There is a big street lamp right in front of the window, it lights up the room in the night. I think it would be better if there were some curtains.
3. For the bathroom, It was not that much clean. To me, the bathroom cleanliness is very important point, so i can't give good grade for that.