Great place to stay - far enough outside the main city centre to offer you a quiet nights sleep, but with great transport links that can get you to most places easily. We used the LUAS (trams) daily with the closest station a 5 minute walk away and it will take you into the city in no time.
The open plan kitchen area is great for a group of people if you fancy a night in which we did after doing the half marathon!
Although I didn't get to meet Caroline, her communication leading up to our trip and during were excellent. Would definitely look at staying here next time if we visit Dublin again.