We had a lovely stay in Howth : it's a lovely harbour with pubs and restaurant, a family atmosphere, we enjoyed the walk along the cliff
We just loved the place, it was quiet and not far from Dublin by the Dart : however the ticket of the dart is nearly 7 euros, so it could be a bit dear...
There's a supermarket not far, it is good value with a lot of choice
Daragh is a very nice host, we had a nice evening at his pub, it's friendly and authentic
I would go back there next time