Church Hill Mews 1 is a lovely place! Super comfortable, very nicely furnished (antiques and lots of books), 3 bathrooms (which for we Americans is great), lots of light (skylights and fantastic conservatory open to back garden).
The location is super-duper--short walk to Dalkey Village (great restaurants, shops, and pubs), DART (public transport), several swimming places (if you like cold water swimming BRrrrrrrr), historical sites like the James Joyce Martello Tower and more.
Fergus and sister Dervla are close by and very responsive for any questions. We had a wonderful time and look forward to another visit.