Christine's apartment was perfect! The neighborhood is great, very authentic Parisien and an easy walk to the more common sites and areas to visit. I highly recommend getting breakfast at the boulangerie called Du Pain et Des Idées close by.
The building is fantastic and very nicely renovated and modern. The apartment itself has really big windows, a lot of natural light, but it's very very quiet with the windows open because it faces inside the block, as opposed to facing the street. The place has everything you need, is SUPER clean and comfortable, and the bathroom/shower looks brand new and easy to use.
Definitely recommend Christine's apartment, it's perfect!