Our stay at Anne's place was great. The studio is very spacious and comfortable, everything worked perfectly (specially the heating since it was -4C outside but inside the studio it was very nice), the kitchen had everything we needed plus some amenities that Anne left for us, such as bread, jam and juice :).
The studio is perfectly located I would say, in walk-distance to the Eiffel Tower (about 20 min, and the scenery on the way is beautiful), and very well connected to public transport (you have all the options close this place: RER, Metro and Bus).
The neighborhood is very nice and quiet, we came some days after midnight and we felt safe at all times walking from the metro station to the studio.
Anne was very communicative at all times, and very flexible regarding check-in and check-out times.
The only downside in my view is that there is no Wi-Fi, but we managed to survive :).
I would stay here again on my next trip to Paris!