I highly doubt it that there is an AirBNB host better than Pauline. You may find fancier places, but there's not a chance in the world that you can have a better human experience regarding AirBNB than with this lovely woman.
I was not expecting much of Paris, neither the AirBNB, but Pauline and her place made it all different. The 11th arroundisment is lovely: it has amazing spots to eat and have a drink, but it's not so central, so you can feel like a Parisian in some way. Since the city is so big, you can access any area of town by subway - and Pauline's place have two stations of different lines in a 5 minute walk.
With a mini market right next to the building, you can have the basic groceries.
Also regarding the building, it's just one round of stairs to the appartment, not a big deal, and the acommodations were amazing - the bed, the shower, the heaters, everything.
It's easy to see why Pauline is such a lovely host: she loves people - and she loves travellers, just the idea to discover some place new and awesome.
My trip to Paris would never be the same without Pauline's tips, attention and kindness, and I strongly suggest that you stay with her during your visit to one of the most amazing cities in the world.