Basile is a welcoming and friendly host (thanks for the tea!). He is really flexible when it comes to check-in/ check-out. We were able to leave our bags all day at his place even after "check-out".
The metro station is right in front of the door. Line 1 takes you to the Louvre, Champs-Élyseés etc. without changing.
Furthermore the place quiet at night, even though it gets busy on the streets - restaurants and cafés close by.