The location is fantastic. It only takes about half an hour to get to the apartment from Gare du Nord. You can walk pretty much everywhere from the apartment and there are various Metro options within walking distance. Some great local restaurants in the neighbouring streets and an amazing bakery literally accross the street. The apartment itself is comfortable. It is on the 5th floor which I would suggest is not an easy climb if you have problems with climbing stairs. It's not the easiest if you have a lot of luggage either. However otherwise it is fine. The bedroom upstairs is spacious, however you cannot really stand up straight as the ceiling is low.
The cleaner met us at the agreed time and it was a very smooth process picking up the keys etc. Cecile was contactable and was able to come to the apartment quickly to sort out any issues. We enjoyed our stay here.