All instructions are very detailed and easy to follow. The flat is quiet, clean, charming, nicely decorated with a lot of natural light (especially when we came for Christmas). The ventilation is good when needed. We didn't lack anything for a comfortable stay. The flat is on the 4th floor without elevator (in French system --- it's gonna be 5th floor if you come from other country) so my advise would be to not bring too many luggages so you don't have to carry a lot and to not disturb other people living in the same building with noise. Ingrid replies quickly and offers a lot of information during our stay. We had a good time in general and would recommend this place.