Corentine's place is a very good value for money.
We stayed for 2 nights - 4 people. There are 2 double beds in 2 separate rooms.
The space is small but has everything you need and also is clean and comfortable.
The location is very good. There are 2-3 metro stops around and you can get everywhere in max 30 min. The Gare du Nord is 20 min away.
The area is nice with many cafe and restaurants around but also quite.
The communication with Corentine went smooth and she is flexible with check-in/check-out timing if the place is available.
I think is a great place to stay in Paris.