We stayed 2 nights at Eileen's place, in a private en suite room. The place is located in very nice suburb of Dublin, just a few minutes from train station of DART. Return ticket to city centre is just around 6€.
Eileen's place is exellent value, comparable to high standard B&B. The room with a small bathroom was spotlessly clean, the beds were comfortable and the wifi was working. Eileen prepared for us a nice continental breakfast. We also could park our car right outside the house, so we had no worries about it. Eileen provided us with all necessary information, train schedule and also recommended us nice restaurant / pub in the area.
Overall, if Im ever back in Dublin, I'll stay here again for sure, the centre is easily reachable and it the same time you get all comforts of a suburban B&B.