Stéphanie's place was wonderful. It is on the fourth floor of a building at the back of a little courtyard, so set back from the street and therefore free of any street noise. It is in a wonderful area of Paris -- Belleville -- steps away in one direction from one of the nicest parks in Paris, les Buttes Chaumont, and in the other direction from Rue de Belleville, a pleasing hodgepodge of old local and more hipster restaurant and shops. Down the road are some of the best Chinese restaurants in Paris.
The place itself is great -- basically two medium-sized rooms, one serving as living and dining area, and the other as bedroom and study. Both are very tastefully decorated and feel very homey. The bathroom seems to have been very recently renovated, and is therefore very nice and highly functional, not always the case in older Parisian buildings. The bed is super comfortable, and there is a very attractive desk at which to work.
Communication with Stéphanie was always prompt. Stéphanie was there to meet me when I got to the apartment, and she gave me a very thorough tour and left clear detailed explanations for everything.
I would return here without hesitation. It is ideal, especially for a solo traveller.