It was a pleasure to be Caroline and John's guests. Don't hesitate to ask John for some advices about what it's cool to visit. The room and the house were very very clean. It's not that far frop the city center (20 minutes by the 15 bus).
The hosts were kind and lovely and they have many guests coming to the house so you can speak easily with all of them.
Sarah and I highly recommend this house for visiting Dublin!