We spent five days at Nour and Anna's. The room is as described, not big but quite enough. Everything was clean and we were also allowed to use the kitchen, which was really great because it is a little bit expensive in Dublin for students like us :D. Anna and Nour are very kind people and gave us good tips, what we could do in and around Dublin.
At the beginning there were some problems with the communication, but after a phone call everything was good. So if they don't answer directly, don't panic :). Everything was great and we really enjoyed our stay. Thanks Anna and Nour!