We stayed for 5 days in Andy's apartment, and had a wonderful experience.
Andy was always quick to respond to our messages, helping us with tips for transport from the airport and with some extra guidance for us to find our way when we arrived.
The check-in and check-out went smoothly, and the apartment had everything we needed - exactly as its description said.
The whole place was squeaky clean, and it is well within walking distance to the center of Dublin (and if you're not in the mood for walking, public transport is always nearby).
If you're thinking about going to Dublin, I sincerely recommend that you book this apartment.