Great apartement in a good location, in walking distance of two metro stations and Gare du Nord.
Valerie was a very welcoming host and was proactive in making sure that we had a good stay.
The apartement looks nice, has a comfy sofa and a nice bonus of an outdoors place to sit and hang out (there is also a very friendly cat in the courtyard, which my girlfriend loved). The courtyard is very calm, but there are children living next door and they tend to wake up pretty early.
Getting in and out of bed was somewhat interesting with climbing the ladder, but the only real minus is the missing ventilation in the bathroom.
All in all a very nice stay and would recommend the place to others.