Julien's place is wonderful! Decorated eclectically and fun, we enjoyed spending our down time sitting with the windows open and having friends over for a glass or two in the spacious living room. There is no AC or elevator to the third floor where the flat is, but the charm of the architecture makes it totally worth it. We preferred to enjoy local cafes and dining, so the small kitchen didn't bother us. The shower has awesome water pressure and shower head, a definite bonus!
As American tourists visiting Paris, this flat was a little far from where we spent our time. The metro stop was a short walk and scooters available down the street which made transportation very accessible. We enjoyed local cafes and restaurants in the neighborhood, and hearing the school children each morning down the street :) In the future, we would probably choose somewhere a little more central.
Julien is an excellent host, communicating with you before, during, and after your stay. He is friendly and inviting, as is his home.