I really enjoyed my stay at Xavier's place. He was very communicative and easy to get in touch with. He really made sure I had a pleasant and safe stay. The location near Gare du Nord is great and there are yummy Indian restaurants nearby, as well as French bakeries and brasseries. The toilet is shared but I never saw any neighbors so don't let that put you off! I'm traveling to Paris quite often on my own and I would definitely stay at Xavier's again :)