Myself and a friend stayed at Anne's place and really enjoyed the experience. The flat is perfectly located a stone's throw away from Montmartre and very close from/to Gare du Nord (you can even walk from there!), and is as described in the listing, very quiet and quite spacious actually.
We didn't get the chance to meet Anne, but communication was really easy and she was always quick to reply, and she even contacted us when we arrived to make sure everything was okay. The instructions to get into the flat were great too, we had absolutely no problems finding it.
A few days before arriving in Paris, Anne sent us a guide with everything we need to know about the flat (digicode, wifi passwords etc..), as well as some recommendations of what to do and see, where to eat in the area.. which was very useful.
I would definitely recommend her place if you are looking to stay in a cute, quirky Parisian flat while being in one of the best neighbourhoods of Paris.