Arno's place was just great. It's incredibly bright, super-convenient to the Metro (it's literally across the street), and is near some genuine, far-from-touristy cafes, restaurants, and the like. It's also across from a grocery store and a produce market up the street and is ideal for an individual or a couple. Arno is exactly what one wants in an Airbnb host. (And I've used the service a few times.) Although he was not in Paris, he answered every single question via email nearly immediately, and he volunteered information about the neighborhood that proved incredibly helpful for my stay. His mom greeted me when I arrived, saw me off at 6:30 in the morning the day I left, and over came to help me figure out how to work the stove when I had trouble doing so(!).