If you are visiting Paris and have the opportunity to book this place, do it immediately. Don't overthink it, just book and enjoy if you're lucky enough to find it available.
Jean-Michel was the best Airbnb host I've ever experienced. He was extremely kind, hospitable, and accommodating. Gave us a walking tour and history of the neighborhood and surrounding areas, along with amazing local advice on which places to visit, which to avoid, and fantastic tips on accomplishing our itinerary. The place is very modern and stylish, clean and comfortable. We had coffee and pastries each morning with Jean-Michel, while talking about various aspects of Parisian life.
The neighborhood is perfect; directly in Paris City Center, easy walking distance to the Louvre, Notre Dame, and most of the top Paris destinations. Public transit is about 3 minutes from the apartment, and can take you anywhere in the city. We used it to get to Versailles, Arc de Triomphe, the Eiffel Tower, and many more places extremely quickly and easily.
In summary... just book this listing and enjoy if it's available. You won't find a better host, a better neighborhood, a better value, or a better experience.