We've never had a bad AirBnB host, but Marco is the best we've encountered. He was in frequent contact ahead of our arrival, met us at the airport shuttle stop to escort us to the apartment and gave us wonderful tips on navigating Dublin.
The apartment itself is in what I consider an ideal location, in the Liberties neighborhood just outside the city center. You're close enough for short walks to everything, but get to escape at the end of the day. Also, in close proximity to neighborhoods that are more local than touristy.