Right now my wife and I are on a trip through Europe. This has to be one of the homiest places we've stayed at so far! We loved the decor in the flat- more importantly the location was fantastic.
In the other countries we've been in thus far the train has been a bit of a headache. This place is 2 minutes walk from a very well connected and easy to use train station.
Numa was very helpful throughout our entire stay- he asked us a couple times if there was anything he could do to help and really made us feel at home.
In our opinion you'll regret not staying here while in Paris.