Location was excellent, walking distance to Notre Dame, Louvre Luxemburg gardens. This place operates like a hotel, but check-in was available after 8AM, which suited us well, since out plane arrived in the morning. Free breakfast was available every morning. Our room was on the first floor (technically 2nd floor, street level was counted as ground), overlooking very busy and beautiful street, full of restaurants and cafes. Street was busy till late, but with closed windows, we could not hear anything (double windows). The only thing to notice is that carpet was old, but I imagine that this will be changed pretty soon as well. Staff was cleaning room and bathroom every day (and bathroom / shower was very clean and seemed to be new). Hotel was several stories high, and had one small elevator, despite the building being pretty old. We never needed to use it, since we were on the first floor.
In general, we had excellent time, location was perfect, staff very friendly and unit was maintained very clean. I will definitely recommend Xavier’s place to my friends and relatives if they need a place to stay in Paris.