We were unlucky, couldnt find the entrance door from the video description, then the locker wasnt working. After 45 mins of calls and our brainstorming we found the door and Merveil told us where we could find a key so not to use the locker with code.
The flat was nice, great to be in a place with very high ceilings, amenities were there, for a group we would have expected a washing machine but we knew there wasnt one in advance. Overall nice comfy beds, enough storage space for a weekend. Nice soaps. Location was ideal close to les Halles/Pompidou, lots of shops.
We had an issue with mice, found our bred was eaten, they did bite the plastic bag to get to the bread! Merveil said they will address this issue.
They had many rules that you beed to read about, high deposit and strict on noise. But the flat is already in a noisy neighborhood and there was a big group party next door to us. We could hear everything.