Great place to stay, highly recommended. Cozy and clean, central and quiet. We loved it.
The nearest Tesco Supermarket is a 5 minute walk away, and there are 3 Pubs just around the corner. To get there we took the Airlink Bus from the Airport to O'Connell Street and from there we took a taxi. But you can also take Bus No. 1 or 47 to Irishtown Rd (but watch out: You can only pay with coins and they don't change). From there it's a 1 minute walk to the apartment.