We had a great experience staying at Ryan and Marcks' place in Dublin. It was in a very quiet, residential area close to the convention centre and other businesses, but easily walkable (20 mins) to Temple Bar etc.
We barely saw them as we were out discovering the city most of the time, but they were perfectly amenable to any requests, and were very easy to communicate with, as well as laying out a continental breakfast and cereals to get the day off to a good start.
Highly recommended for a single or couple staying for a few days.