It is incredibly easy to explore and enjoy Dublin from Clark's flat.
The apartment is very centrally located right in the middle of the city - truly everything in the city is within walking distance. I stayed here for 80 nights, and the only time I needed to ride the metro or call a cab was if visited something outside the city altogether. Otherwise, I just walked! It is also located only one block away from Capel Street, a pedestrian-only and well-known street, and my favorite street north of the Liffey. It has lots of little bars, restaurants, shops, and grocery stores.
If you enjoy the city lifestyle, and love exploring a city through walking, this is a fantastic place!