The apartment was really nice, tastefully furnished and fully equiped - from kitchenwares to bed linen. We felt very comfortable there.
The location was excellent, 30 minutes on foot to Louvre, Notre dame, Montmartre. There is everything you might need in the area, grocery shops, fruit and vegetable market, bars and restaurants.
We didn't meet Olivier in person (he was on a business trip), and despite his absence he was available for mail replies and tips about where to go and what to do, he arranged for smooth key handover.
Very recommended.