We haven't met Denis in person, but everything was fine and it was ok to communicate via email. The flat is wonderful, nicely decorated and has everything you need. It's situated in a historical building and many elements of the old decor were preserved and it's really cool. The neighborhood is nice, quiet, has many supermarkets and restaurants, and close to the center (30-40 minutes on foot), and to the Eifel Tower (40-50 min on foot). The public transport is also very convenient - bus 21 stops right around the corner, when coming from the center and across the street to go to the center, 8 mins on foot to the Glacier metro (recommend to use it at least once, the views totally worth it), 10 mis to Denfert-Rochereau - big hub to get to any part of the city and even to Charles de Gaulle (is there is no strike...) in 40 minutes. All in all we highly recommend this place, we spent a week here and liked absolutely everything.