My boyfriend and I stayed with Marie-Suzanne for a night while we were traveling through Paris. The apartment was tidy and nice, and she was very sweet and helpful to us! A joy to stay with. Highly recommend.
The only drawback I would say is that the location was a bit far from the main sights to see, like (Eiffel Tower, Champs-Elysees, museums, etc), but it was still very easy to get to those places, since the location is right next to a metro stop. It just took maybe 45 min on the metro from the apartment to the Eiffel tower, for example.