We stayed for a week in May 2014 in Liam's apartment "W B Yeats". Very comfortable place to stay - stylish, the furninshing is in perfect state, the ceiling is pretty high, so it's always very fresh inside and I rested and slept there really well.
The house isn't situated in the very center of the city, buy the nominal center - O'Connell Str. - is within walking distance and we usually did so, but if you're really in hurry you'd better get taxi.
Another plus of the place is that a pretty big shopping center is very close. It includes pretty big Tesco's supermarket and some other shops, and we've even found a shop with electrical supplies where plug converters (Continental -> British) were bought.
The host is an extremely considerate and helpful person, so we're very delighted of out experience with Liam.