I stayed at katia’s place for 6 days... it was great experience!
The location is excellent, and it’s really a plus to have places where to shop near by.... there are mini-markets, bakeries and restaurants , so you just have to choose if you want to eat out or have a nice meal at home with the spectacular view of the Basilique du Sacre Coeur out of your window.
Katia was a great host, she answered quickly to the e-mails and she gave me a lot of helpful information.
I recommend the place also because is close to the station Gare du Nord and you have a metro station even closer!