Very nice hosts. Great location in the heart of the St. Germain des Prés neighbourhood, with the Latin Quarter and St. Michel Place within easy walking distance. You won't find a better price for the area. My only caveat is that if you're a tall person, you might find the room a bit small; I'm only 5'8" and I still had to lower my head inside the room. But this is a very minor issue given that I wasn't in Paris to stay in a room. I used it strictly as the place where I slept at night.
Overall it's a great deal; the hosts are helpful and friendly. The neighbourhood has everything.