We spent 5 days at Grainnes's place and we had a wonderful time. Downtown is not located far away, you can easily get there by bus or the Luas or you can try the local bars nearby, very much recommended. The welcoming was extremely nice, we got many tips where to go and what to see, in which order. This was beyond my expectation and I did not experience such a warm welcoming anywhere before. The flat is well-equipped, I would recommend staying at Grainne's place.