This is a lovely, well-appointed apartment with thoughtful hosts. Location, location, location... Steps from Notre Dame and Ile de la Cité, Shakespeare & Co, Cluny museum, two metro stations, and tasty cafés, brasseries and markets. Four adults in our family shared the three queen-sized beds comfortably. Two of the bedrooms overlook a quiet courtyard; the other overlooks a lively brasserie with a lot of tourist reveling, so that one upstairs room could be noisy. The apartment is on two floors, with a full bathroom on each level, a well-equipped kitchen with washer/dryer, comfortable beds, and a nice open-space living room. The five flights of stairs helped us work off the delicious cheeses and pastries, especially the lemon tarts, but do heed Arianne's description that there is no elevator. If you are game for the climb, we recommend Arianne and Christian's apartment wholeheartedly.