My wife, daughter and I stayed at Florian's for 4 days in August. The communications with Florian were top-notch even though our initial flight got cancelled and we arrived a day later than we hoped, Florian easily adjusted his check in process for us and a few email exchanges and we were well taken care of.
On entering the Apt, the pictures and ratings say it all, a very clean apartment and convenient location in Montmartre. A nice quiet location on a side street in Montmartre and if you know the hilly arrondissement, Florian's place is conveniently halfway up to Sacre Coeur so you do not have to walk all the way up or down and is located close to mini-marche, cafe, restaurants and the Metro/bus /taxi stops. We knew in advance the hills in this neighbourhood could be tiring so we wanted a mid-location and this place was great.
The apartment was very comfortable for the three of us and had all the essentials we required. The special touch of a welcome info box carried a couple extra plug adapters ( handy in this day of extra cell phones). The beds were clean and very comfortable even the pull out couch. Lovely shower and facilities.
Even though it is on an upper floor we found the elevator very handy for luggage ( and tired people from exploring Paris).
Would highly recommend to anyone doing a tour in Paris