Cosy and well connected with the metro. The latter takes you to all the major sights in Paris. There are great cafes and restauranrs within a few hundred meters, too. Big windows to let all the fresh air in, place has an artsy touch to it as well. Security has been well thought of. The host is cooperative.
To make the experience even better: perhaps an additional bar of soap and a few more toilet paper rolls would not have hurt.
As a whole, I recommend this place.