We echo the other reviews positive and negative. First, the apartment is lovely. Great location, near metro and bus stops, walking distance to many shops and cafes, Luxembourg Gardens. The street was quiet at night, which was important for us. 20-30 minute walk to Musee d'Orsay and Louvre. Nice furniture, comfortable "real" bed.
The only negative was the unnecessary stress at check-in. A couple of days before check-in Christine sent us a message (via Airbnb) asking if we could check in at 4 p.m (instead of 1 as is posted on the listing.) I answered saying that the only way we could do that was if we could drop our luggage off before that, because we were checking out of our other place at 11 and didn't want to lug our luggage around Paris. We never heard back. I called and texted her at the number on the listing. No answer. The day before our rental was supposed to start we got a text from "Helene" who said we could check in earlier and she would call us the next morning to arrange. Then we didn't hear from her until 11:30 the next morning (after we had to check out of our other place.) After that, everything was fine; we were able to check in before 1 and Helene answered some other questions promptly. We never heard from Christine. So I don't know what the story is there. They need to figure out a better way to communicate with guests if they want to be a host for Airbnb. It was a stressful couple of days, wondering if we were going to have to hang around till 4 with luggage and all.