We had a nice week in Christophe's. It has all that you need for a comfort stay. The place is parisien authentic, old building, wooden stairs six floors up, but the climbing worths, you'll enjoy the view from the window.
Bed comfortable, no neighbours noise, amazing life in the zone, even a Vietnamese and Chinese restaurants around the corner, metro, supermarkets. Walking to Louvre museum takes like 35'.
And on top of all this, the owner is very helpful.