We had a great time in Vincent‘s apartment! The check-in was done by his dad who is just lovely! He explained everything to us (WiFi, how the pull out bed worked, etc) and was really nice :)
The apartment itself is as advertised. It is small, but since we pretty much only spent the night there, that was totally fine. From the apartment you are really close to the center of the city (a walk to Notre-Dame is just about 20 Minutes!). The area also has a lot of restaurants and bars, which is great.
Overall great experience staying in Vincent‘s apartment, I would absolutely book it again :)