The apartment is located perfectly to explore Paris within a few days. It's in 15 min walking distance from Gare de l'Est and Gare du Nord. The check in and check out process was ok, we picked up the keys at a little supermarket and dropped it off at a contactless key station in a lavatory. With an instruction the contactless key drop off was definitely manageable. Both places where 3 minutes away from the apartment and where open until around midnight, which was great for us. We never met Héloïse but she responded very quickly on our messages. Overall, I can totally recommend the apartment which is furnished pretty nice. We really enjoyed our stay here.