We had a great time staying at Maroni's apartment. It is located just between the river Liffey and the Phoenix Park. You have a beautiful view on the river from the living room :)
The room is very tidy and clean as well as the bathroom.
You share the apartment with other guests but that's no problem at all.
Maroni is a great host. She has been really flexible with the check-in because our plane arrived quite late.
We took the taxi from the airport which was about 30€. There is also a bus stop just 5 min away and the Heuston train station is 15 min away.