I would totally recommend living in Constance’s apartment! I did for a week and it was great:
The apartment was perfect for two people and as comfortable as you see in the pictures. After a long day of walking through Paris, we were really looking forward to sit on the couch with a tea in our hands and a board game in front of us.
Plus: It isn’t even bad that the apartment isn’t right next to the Eiffel Tower or the Louvre. You can just walk or go by bike to the heart of Paris and explore the City additionally.
Also communication with Constance and the Check-In/Check-Out went well, so I’m sure you won’t have any Problems!