Nathalie and Jean-Jacques's apartment was perfect for us. Great neighborhood, close to several metro stops, and only up one flight of steps, which meant we had an easier time with our luggage. As other reviewers have pointed out, it's on the back side of the building facing the courtyard, so it doesn't get a lot of natural light. That was just fine for us - we needed a place to get some rest, so the lack of light was helpful! Plus, being on the back side of the building meant we didn't get any street noise. We did notice some light rumbling every time the metro trains came through under the building, but it was a pretty quiet ambient sound that we got accustomed to very quickly. The apartment is small - more like what North Americans would expect from an economy hotel room than from a proper apartment - but it was totally adequate for my wife and I. The kitchen isn't really practical for any cooking, but it would be great for making some coffee or tea or quick sandwiches. The decor in the room was really nice. Nathalie's work is super pretty, and she clearly put a lot of thought into the color and interior design of the place. The bed wasn't super comfortable, but better than most of the beds we found elsewhere on our trip (in Iceland, France, and Turkey), and we had a couple nights of good sleep. We'd definitely consider staying here again on our next trip to Paris!