The place is perfect to spend a few days in Paris. All sights in Montmatre are easily accessible by foot within a few minutes, you're basically in the heart of it. At least on the fifth floor, we didn't find it too loud. It's a very basic room, but it's clean, the bed is cozy, there is a desk if you want to do some work. We really liked it and it has a lot of Parisian charm.
Note that this is a basic hotel, not a private residence. I wish AirBnb would make this clearer.
That said, we had some major issues checking in, which tainted our experience somewhat. After booking and having the place automatically confirmed, we never heard back from the hosts and did not had any information on how to check in. We had to call AirBnB and spend an hour on the phone on hold and waiting. At the end, AirBnb managed to get hold of them and resolved the situation. Turned out, all we had to do was just show up, there is a manager on site to let us in. So, dear future guests, this is the tip I have for you. Just show up at the place at the time specified in the posting. Dear Michel et Amina: please up your communication game by responding to messages and posting on the ad that guests can just proceed to the site.