The house is indeed cozy. It is not what one can truly expect but grows fond of never-the-less in a very short time. It's first and foremost plus is its location. Walking distance to so many wonderful sites while being completely ensconced in a wrap-around building that feels like a tower protecting one from noise our any outside world. I happened to be in Paris 11/12-11/16, the time where extra "protection", albeit illusory was very much welcomed.
Arno is a gentleman who is a are of traveler's inquiries. He'll meet and greet and offer any support needed. A true pleasure to deal with.
There is a grocery store within few steps. Anything you need can be purchased there and then.
Enjoy your stay and Arnaud's cozy house - it is a treat and Paris is a city to love.