It was a disaster and is absolutely not recommended!
We wanted to check in after 10pm and were assured several times that it would not be a problem at all.
In fact, the key delivery did not work and we were standing on the street with no place to stay. It is very difficult to find a hotel in Paris after midnight. The company managing the flat only responded with prepared messages and did not help us at all. To this day, they do not want to pay for the hotel.