We stayed for just about a week at Thierry's place and really enjoyed our time there. The apartment had plenty of room for the two of us, a nice separate kitchen and bedroom and felt very comfortable immediately (which was helped by Thierry being a very gracious host!). It is located in an older building, which added to the charm. Location is very good since you are not in the thick of things (good for quiet in the evenings), but in quick walking distance to restaurants/grocery/etc. Would very much recommend if considering a visit to Paris.