My girlfriend and I slept here for 1 night on our way to Dublin. The room is located above a pub and the old building has a really cozy atmosphere. The guests share a bathroom in the hallway, which was no problem at all, and the room is close to other pubs and restaurants.
If you're looking for a more authentic airbnb experience - getting involved with the host, living in another person's home, etc. - I would not recommend this place. But for a single night in the city center of Kilkenny it was perfect.