I had a great time at Christian's, and he was very flexible with my early arrival (especially to drop off my luggage, and, as it turned out, the room was also ready by the time I arrived, so I got to take a shower too). He was very personable and welcoming, and we got to talk for a bit about our lives and my upcoming move to Germany before I went on my way to rediscover Paris. Christian's place is very close to the Pont Cardinet metro stop on line 14, which takes you to the heart of Paris very quickly. Would happily come back next time I'm in the area! :)