The apartment is nice and clean and perfect for a short stay in this wonderful city. It's well located and easily walkable to/from Gare du Nord. Check in was quick and smooth and Laurent & Lisa were very quick to reply to my questions and accommodating of my changing schedule when it came to check in.
As someone who is >180cm tall, I did find the ceiling a little low, but that was not a big deal, considering it was more for a base to sleep and get ready before a day of exploration.