I stayed at Tiffen's apartment for 2 weeks and it was in a great spot if you would like to avoid the major tourist areas around the Eiffel Tower etc. The entire city is easily accessible by metro however I saw all of Paris by foot and never used the metro once! A lot of walking but you don't even notice when you are getting lost down little alleyways and discovering areas you would never have know existed. The apartment is very clean and tidy and I felt completely at home the entire time I was there. I did not see much of Tifenn as we were always out at different times but she is lovely and always available to help with anything you need. I would definitely book this apartment again and always stay around this area.