We were a family of 6 staying in this apartment for 5 nights. The location was just what we were looking for: being within a few minutes walk from Guard du Nord station (including the Eurostar); lots of local shops; and can be used for a long walk into town as well (where time allowed). The area itself felt fine but not pretty, and we did not feel unsafe even late at night. It made a great base for us.
The flat has two good bedrooms and an additional box type room up some stairs with a bed in (which has a low ceiling but no door or window). The first bedroom had a double bed, and the second bedroom two double beds. We found that our youngest kids liked to sleep in the box room but it is not really a proper bedroom.
The flat is relatively spacious with a good sized living room/ kitchen and two toilets and bathrooms. It also has its own front door off the communal outdoors space.
The one thing to be aware off is that the finish/ furnishings/ kitchen size/ kitchen equipment is not high quality, albeit this did not impact our stay (but did require us to buy soap for the toilets...).
Cedric was an excellent host and the details to access the flat were just what was needed. He even allowed us to drop our bags off a couple of hours earlier which really helped.
We had a great trip to Paris and the flat was as presented on the website