The listing is quite accurate - it only failed to mention that an elevator, while new and completely functional, is barely sufficient for two US-sized passengers. The flat is comfortable enough for two (including bed) and has everything necessary for a short stay.
The owner was friendly, accomodating and provided sufficient reference and guidance materials in the guest book.
The best feature is neighborhood - le Marais - best of Paris - safe, vibrant, friendly, authentic and just next to about everything.
Me and my wife (young couple climbing from 55 to 60) enjoyed our stay, would recommend this place to friends and come back ourselves.