I have stayed in this apartment for 3 nights with my dad. We had a great stay and were especially happy with the location. It is in the middle of a very nice area of Montmartre from where we could easily walk to nice restaurants and cafes, or take the metro to other parts of town. The apartment is located on the 4th floor, giving an incredible view of Paris. We didn't meet Louis, but communication before out arrival was perfect! Would defiantly recommend staying here, especially for it's location and view. If climbing stairs is difficult for you, this might not be the best option, but otherwise perfect!!