The location is fantastic! We love the neighborhood and it is also near to the metro station, just 2 minutes walk. You can find many good cafes, local markets, pastries etc. We can walk to almost everywhere in the central Paris. The apartment is on the highest floor but the building has elevator! Communication with Marie was smooth and easy. There are 2 toilets, the one at the lower floor can be useful at times. Please take note if you are over 180cm, the ceiling at the second floor is low and I hit my head a couple of times. The spiral staircase to the second floor is a little tricky but we have no problem with it.
Overall experience is great. My wife and I prefer staying in the apartment to the usual hotel stay.