We had a mixed experience at this listing. I'll address the positives and then the negatives.
The room was clean and beautifully decorated. There's a great selection of DVDs and a TV to watch from bed! I had a good night's sleep in the comfortable double bed. It's also really well-located: right next to a train station, although you can walk to Notre Dame in about 20 minutes if you want. The whole neighbourhood is filled with shops and cafes, which include fast food as well as traditional Parisian cuisine. There's also a famous statue/square just a few minutes walk. It was also really easy to find the place and get to the room as the hosts provided comprehensive instructions. I never met the hosts since they were away that weekend, but from the messages, they seem very friendly and polite.
However, I have to note a few things that weren't so good during our stay. Firstly, the kitty litter has an unpleasant odour and we could smell it from our room. It was kind of inconvenient and stressful leaving the apartment, because we had to make sure that the three cats did not go outside, except they're quite fast runners and were in the hallways a lot. I also thought that the communication could have been a lot better, since the listing is an instant book and I was not informed that the apartment was doing renovations/constructions until after the booking. I strongly feel that it should have been in the listing.