Great experience! Tiffenn happily provided all needed info and my stay was a most satisfying one. The apartment is admittedly quite small, but it is perfectly good and feels extra authentic...and the bedroom is more than big enough (esp. by paris standards) for the price.
It's located quite close to a subway line, so you'll get accustomed to transferring at 'Nation,' though that's walkable too. All in all, nothing but positives to say!