Brunissende was a fantastic host. She replied to all my questions in an extremely rapid fashion in spite of the time difference and made sure her mum was there to great us on arrival in her absence. She was also very flexible in terms of departure and was ready to extend our stay at very short notice (we didn't need to stay longer in the end).
While small, the apartment is perfect for a couple alone or with 1 child. My daughter (8 years old) fell in love with Brunissende's daughter's bedroom and at times wanted to stay and play with the toys rather than explore Paris!! While well situated in terms of transport (10 minute walk to Gare du Nord and 1 minute to the closest Metro station), the neighbourhood it is located in is not the cleanest or most tranquil. It is on the first floor facing the road and with people outside on the footpath until quite late making noise, it was hard to sleep without closing the windows which made it quite hot and stuffy in the apartment. Also, family-friendly food options are a little scant in the immediate neighbourhood. There is one bistrot around the corner bit other than that you need to walk back to the Gare du Nord to find any restaurants.