We stayed a week at Caprice Amour and we had a very pleasant stay. Reception was perfectly on time and introduced us to the main things in the apartment (lights, cable, water etc). The apartment was clean and just like expected. Check-out process was easy. Prime location in Marais.
Cons: ceiling is a bit low (especially in the bathroom tub - watch your head!) and you need to watch your step in the apartment since there is a wooden beam that sticks up in the middle of the floor; the cover glass over the dinning table has squared corners that can hit you right in the thighs.
Summing up, we had a great first airbnb experience. The apartment was good as expected and the location, great. We would definitely recommend!