My boyfriend and I stayed there for 4 nights, Nadia was a great host, who was writing very understandable descriptions how to get into the apartment because she couldn't be there.
The communication with Nadia was without any problems and she always responded in a couple of minutes.
The apartment is in a good location, you have a lidl in not even 5 minutes walking distance as well as a great french bakery where you can get your breakfast baguette and croissant.
The metro is approximately 7 minutes from the apartment and with the two lines that are passing there you can easily get around and switch to M1 if you want to go to the very centre of paris.
The apartment is really just one room and a small bathroom but it was fine for a city trip and it was clean. The Wifi was also working without any problems and the sofa bed is big enough for 2 people.
The only surprise was, that the apartment was directly at the entrance which makes you hear every person that enters or leaves the apartment. If you are a deep sleeper it's fine but I personally couldn't sleep then.
But all in all it was good :)