My mum and I spent magnificent 8 days in Paris. And those days were awesome not only because of the city itself, but also because of the place we stayed in.
Guillaume's flat is very nice, it is very clean everywhere and you will certainly find everything you need in kitchen and bathroom. Besides, it is situated very close to one of the most picturesque places - Monmartre with great views and lots of cafe and sacre-coeur, which is in 5 mins. Pretty sure, that next time I will try to stay here. Btw it takes 30-35 minutes to reach the center on foot, so it is very good for those who like walking))