We (two friends of mine and I) stayed with Margaret and Gordon for a weekend in March. The communication was good, Margaret responded within a few hours. We arrived in the early morning (around 8am) what wasn't a problem for Margaret, who welcomed us and gave us the key right away. She is a friendly and helpful person and open for talks and recommendations. The room was clean and the beds comfortable. All further details were true aswell.
I totally recommend to stay with them when you are around Dublin as we are really glad we did.
Getting to the city centre is no problem, there is a bus station nearby or walking might be possible aswell (what we did from time to time).
Would stay there again - best regards.