Nicolas' set of rules for checking in are detailed and easy to follow. Overall, great location - the only thing we didn't expect was for the walk from the inside of Charles-Gaulle train station through Exit 8 (Avenue Foch) to be so long! It took us about 10 minutes to fully get out of the station, with quite a few stairs going up and down. It's something to keep in mind for people with crutches/wheelchairs/trouble walking, and if you're carrying lots of luggage. Overall the place itself was clean. The only thing is that the wifi in the room is very weak/non-existent, and can only really be accessed out in the living room. However, Nicolas is always outside in the living room, watching TV and working from home. This is fair enough since it is his own home, but again, it's just something to keep in mind if you would prefer minimal interaction.