A great place, if you don't mind walking up 6 flights of stairs. We didn't mind, and really enjoyed staying in this modern apartment in an historic building. Plus, the apartment has a great view of Paris. It was plenty of room for three of us.
The location is great for public transportation, with Gare du Nord and Gare de l'Est in the immediate vicinity, a Metro stop steps from the front entrance, and many bus lines terminating at the train stations. It's a diverse neighborhood with lots of good looking Indian restaurants. Close to Montmartre and Canal St Martin.
Another bonus, Elle is a great host. She remembered that it was our daughter's birthday and left a birthday bottle of champagne and a baguette. We had a very early train out of Gare du Nord, and she offered to help us with our bags in the wee hours of the morning.
Highly recommended.