We stayed for three nights at Guillaume's flat. The kids loved their room, as someone previously wrote, the appartment looks better in real life and is nice and clean. We walked to the Eiffel Tower (about 40 minutes with two kids, 6 and 10). Location is great, appartment is quiet and nicely decorated. Guillaume was really nice, asking if all was OK when we arrived and quick to respond to our questions.
I would definitely recommend this place, for families and couples. Thank you Guillaume.