This was my first experience with Airbnb and I couldn't be luckier. Tania and her husband Amine are welcoming and very responsive to any question you may have. The flat was sparkling clean, comfortable and equipped with everything you need (I cooked almost every day). There are two groceries shops on the same street of the flat and many others very close. The position of the flat is ideal, there are 2 metro stations at walking distance (8mins) and many bus stops (one is in front of the flat's building). Montmartre is 15mins walking and with public transport you can easily reach all the most famous sites in Paris (Ile de la cité, Tour Eiffel, Louvre etc..) in half an hour.
I will certainly come back to Tania and Amine's flat!