This apartment is fantastic. Location is excellent, near the Sacre Cœur, in a really nice and vibrant area of Paris, while being tucked away enough to allow for a quiet stay.
The place was recently renovated, access is easy and well organized, and Romain is helpful and proactive, and responds immediately to any questions you might have.
I liked the place so much I would consider buying an apartment in the building. Not sure I can afford it though. ;-)