My partner and I had a studio apartment on the ground floor which was pleasant and well equipped. The apartment has most of the things that you need to be self-sufficient and there were plenty of grocery stores/supermarkets nearby for food.
The staff were helpful and on the couple of occasions that we needed extra supplies (toilet paper, salt, pepper, tea, etc) they were quick to respond and had what we needed very quickly. Thank you!
The apartment has dimmed lights which can be a bit fiddly, and so the apartment can be a little dark, but we had double doors to brighten the place up if needed.
We paid around £900 for a six-night stay over New Year, so this was quite expensive but you are in the centre of Dublin so it is to be expected.