My girlfriend and I stayed here for 3 nights. When we booked it Marina and Stephan messaged us to make sure we knew the size of the flat and warn us that it was quite small. We are so glad we decided to come. On arrival they gave us an amazing list of suggested bars/restaurants/shopping/sightseeing. The flat is tiny but we found it very comfortable for a weekend getaway. The location is incredible, we were able to walk everywhere during our stay, almost everything is within 3-4 km.
Cooking is possible in the flat but with so much good food around we didn't find a need to try.
If we ever get the chance to make it back to Paris, this would be the first place we try to book!