We stayed for 2 weeks and had a great experience. The location is really central and it was nice to be able to see the Seine every day and feel like we were really in the heart of Paris. We also appreciated that there was a grocery store just a couple of minutes away that was open until 10 PM, plus easy access to the metro.
A few other things that we enjoyed: the heated floors, the magical courtyard, the Paris artwork, the heated towel rack and the washer/dryer. The couch bed was also comfy and easy to use, which I say as someone who is somewhat picky about beds. :) If you're looking for a great airbnb in Paris, I can definitely recommend this one.