The stay was wonderful. The apartment is clean, has everything you need and is centrally located. You can get everywhere by foot and don't need a metro ticket. The breakfast on the sunny terrace saved a lot of stress, too. Also Ludovic is really kind and helps with every possible question with patience.
Just one point of criticism: The boiler in the bathroom is really small which makes the showers pretty stressfull for two people. But with that weather outside, you can always escape to the warmth easily ;)