I had a wonderful stay at Pascaline's apartment. It is situated in an upscale neighbourhood with nice views of the sacre coeur and quick access to metro lines.
The room is large, with a massive comfortable bed, excellent wifi, great working desks and a bright window overlooking a private courtyard. I was offered a key to the apartment so I could go out at will without disturbing the others. The kitchen, shower (with an awesome bath !) and toilettes are shared. The kitchen is very modern and has every amenity one can think off.
Above all, Pascaline and her family were very warm and welcoming. Felt like you were staying in someone's home and not merely an apartment. Wholeheartedly recommended !