We loved Alexandre's flat, which is well-located, nicely kept and a terrific value. The neighborhood is surprisingly quiet, but also within easy walking distance of the more active parts of Le Marais, not to mention major attractions such as the Pompidou, the Picasso Museum, Notre Dame, St. Chapelle, etc. Arts et Metiers metro stop is maybe a 5 minute walk, and can get you anywhere in Paris within just a few minutes, typically (although the 3 line is currently closed at Arts et Metiers and several surrounding stops). Great restaurants, bakeries, grocery and shopping are all nearby. The one thing to be aware of in the flat is that it is an open floor plan. A couple of evenings when I stayed up late working were not ideal for my two companions who were trying to sleep.