I can highly recommend Paul's place. We stayed there for 4 nights. The location could not be better for shopping, bar hopping, sight seeing, restaurants or breakfast, Starbucks and The Bagel Bar are both next door. You can walk everywhere. The apartment was clean and cosy and instructions up on arriving were very good. I had looked the street up on google street view so I knew what the entrance looked like and that helped. There is a construction site at a back lot but being a tourist in Dublin means getting up early so that didn't bother us in the mornings. I would definitely stay at Paul's place on Liffey Street again.