This place is beautiful and very well situated in a great neighborhood, close to the Metro, grocery shops, etc.
Had some issues with check-in/check-out, but we managed to sort them out.
Also, the locker of the door is a bit complicated to lock/open - definitely not fun to try to open it for 45min on Saturday night and no one from the agency that manages the apartment could help me... in the end, managed to sort it out too. I would suggest changing it to a more modern one - I know it takes a bit of the Parisian "charm" but it's really unpleasant for guests that are not used to French keys. The next days I had to "live" with the stress of not being able to open the door when I get home.
Even with all this, I would love to come back to this dreamy place.