OK, I don't know how to get started. My wife and I just got home from Paris. The apartment was amazing and just as the description. Everything was nice and clean, smells well and organized.
Additionally, the location of the apartment is worth more than anything. Everything is in walking distance. For those who prefer to walk less - the Metro is in 2 min walk.

About the host: This is the first time we use Airbnb, so our concerns are understandable.
Luckily , our first host was Matt. He was courteous, available and really helped even when we asked to stay another couple of hours after our flight was postponed. Thanks to him we shall return to use Airbnb in the future, and that says it all.