Staying at Claire's room for 9 days was a pleasure. It's in the heart of Paris (5 minute walk to Champs Elyses) close to almost anything one might need (public transportation, grocery shopping, restaurants, bakeries...) and in a nice area. The room was clean and tidy when we arrived, and Claire was both super helpful and kind with us, she even greeted us with a bottle of champagne!
The only things to be taken in account are that the toilet (not the shower, that's in the room) is on the halway and that you will need to climb up 6 floors (108 steps to be precise). But those things are to tiny to complain about in comparison with all the other great stuff.
Absolutely recommendable place, no doubts about it.