We had a wonderful stay in Alix's apartment. It's a spacious, beautiful and cozy place, the bedroom has a super good bed so we could slept very well, the shower is good, the kitchen is well equipped and we enjoyed a lot to cook our meals while listen music from the main room.
Flatiron, the cat, is an adorable pet, very sweet and polite, was a pleasure to take care of him during our week and half there!
The neighbourhood is also pretty cool. You have good markets and groceries just around (a bio c'bon was the less crowded) a lot of restaurants, interesting bars, good boulangeries and fromageries (Alix left us awesome tips about it). The apartment is just a few steps from the metro station, so was very easy to get around the city.
I can really recommend this place and would definitely come back when visiting Paris!