I spent two months in Asyas apartment - and I can only warmly recommend both, the apartment as well as Asya as a host to any long term stayers amongst you guys :-)
The apartment is spacious, nicely and personally decorated, located on the 3rd floor in a great old, but well-maintained building.
Asya provides you with just anything you might need during your stay: The kitchen is fully and very well equipped, the bathroom offers everything you need plus daylight (to all the girls with long hair, while it sometimes takes ages to rinse out the product: the shower provides you with high water pressure - all well!!), the bed is comfy plus covered with two blankets and there's more than enough space in the closet & wardrobe. I loved the neighborhood, especially on non-touristy days during the week, it was an amazing atmosphere of many French locals just enjoying their time in the Abbesses area (I loved the spontaneous jazz gigs of musicians in the bar "Le Progres", just next building on some tuesday's nights!)!
I am a person who enjoys sleeping and getting up with an open window. It might be worth knowing that the windows face courtyard and channel during schooldays the sound of the neighboring school bell a bit (starting at 8 for the first period). No problem though, since normally, by this time, one is already in the course of getting up during workdays - and, of course they're inaudible during weekends and holidays ;-)
My contacts with Asya during the stay were very lovely. She is an amazing host, who does care about the apartment as well as about the person living there. Asya provides for a cleaning lady bi-weekly. Also, she was always extremely reachable and responsive. I appreciated a lot, that she personally came by for my check in (during which, btw. she will provide you with great tips for restos and going out places in the neighborhood! -> I highly recommend to follow the insider's hints :-)) and my check out.
Overall, should my future work bring me back to Paris any day, I would contact Asya rightaway and ask her if her apartment will be available again, and you all should do the same: Do stay there!! :-)