OK so this was my first experience with airbnb and it was super worth it. The apartment was just as advertised (when they say basic amenities count with toothpaste, champoo and lots of coffee ;) ), super clean and just the right size for two people (don't worry you won't step on any toes and you won't be crowded). The hosts are super nice and accommodating (since it was my first trip with airbnb I was a bit of a control freak and they were always super nice) and will do the impossible to help you out. The location is perfect. Close to everything (we walked to famous places - around 30 min with great views to get to Notre Dame), served with several public transports, and with great services all around (restaurants, bars, pastry shops and supermarkets).
Truly you cannot go wrong with choosing this place to stay.