I loved Jourdain and it’s wonderful bistros and the sense of real Paris that we got from staying in Boris’ flat and I would have loved to stay longer, however I have to agree with the reviews that suggest the flat is quite cluttered, something you don’t get from the photos, and the upstairs room is really *very* small and very low.
Boris was an extremely generous host, however, and allowed us both to check in early and out late, and gave us wonderful clear directions so that we felt immediately at home in the area. I would definitely come back - and not only for the neighbourhood bistros! :)