Antonin's apartment is a lovely space located in a very convenient location, as it's only a 10/15 min walk from Gare du Nord (so if you're travelling to Paris via the Eurostar this is actually perfect).
The apartment feels very cozy and it has all the things you might need after a day spent exploring the city.
Antonin was very kind to meet us when we arrived and prepared breakfast for us; moreover, he was very understanding and allowed us to have a late check-out on our last day.
Definitely recommend it!