Overall we loved our stay here and would probably do it again. Gianluca had a very nice person, Mariaclaudia, help us with our stay. She doesn't speak much English, but this wasn't a problem for us.
The bad: If we came back late at night there was frequently broken beer bottles outside on the sidewalk. These wouldn't be littering the area outside by morning, but its something to consider if wearing open toed shoes. We had a miscommunication on date/time of checkin and arrival. The miscommunication didn't have much of an impact as we were able to drop our bags off, just checked in, and left. There was also some noise from upstairs that wasn't noticeable in the bedroom, but noticeable from the common area (this was kinda expected in an apartment in a city like Paris).
The good: The pictures matched the place perfectly and our hosts were very nice. The after the initial miscommunication, the place was clean and wonderful. The location is fantastic as so much is easily accessible from there, walking distance to several metro stops and cafes. The decor is beautiful and the purple theme is everywhere. A wonderful value in Paris.