The unit was very comfy, bed was nice and all the items functioned as noted. The clawfoot bathtub was nice to soak in after our flight and help get us in the right head space to explore Paris. The apartment is located very close to bars and restaurants in the Marais so everything is very walkable . As listed in the description there is at least a flight of stairs for the 3rd floor so don't be surprised that you have to carry your things. it will be a good warmup for all the walking you will be doing in Paris.
The only issue is that the common space of the apartment courtyard was being used by an art show...of which comprised of a coal burning oven. This would get lit up in the morning and fill the stairwell with smoke and the apartment with a bonfire like smell. It would have been nice to have been told that a show would be happening to set our expectations properly. When we woke up our first morning to the smell of something burning we though something had caught fire.