Pros:
1. Excellent location at the center of Paris.
2. Cool view over the Pompidou center.
3. Frederick was very friendly.
Cons:
1. The flat contains tons of stuff with dust all over the place. From how it feels, the apartment is not being totally cleaned after each visit (something that I would expect). Towels didn't have a fresh smell. This is the biggest point for improvement, especially relative to other flats that we took from Airbnb.
2. The flat intended for 4 people with only 1 pair of keys - real limitation for 2 couples case.
3. Very slippery second floor stairs - I almost fell twice.