We had an excellent stay at Peter's. He was so helpful and welcoming and the place was sparkling clean. He had set out some snacks and coffee/tea supplies in the room which was a very lovely touch. The only downside is that it's about a 20 minute bus ride from the central city, and (like everything in Dublin!) the bus fare is somewhat expensive so it does add up over time. I would definitely recommend to a friend though, it was a very positive experience.