Julien’s flat is absolutely gorgeous - it felt like a home away from home. Remote check-in worked well and Julien was very responsive on messages. Two of us stayed very comfortably there, and I can confirm the second bedroom pull out sofa bed is comfy to sleep on.
The flat is walkable to Gare de Nord for the Eurostar, and we got cabs / Lime bikes in / out of town - though I think there is the metro nearby too.
Would definitely stay there again when next in Paris. Merci!