This is a lovely place and totally worth the price. In Dublin it is difficult to find a room this close to the city center (5 mins to Connolly station, 15 to O’Connell street).
Even if the bathroom is shared between up to 5-6 people, there is no problems because everyone has different working hours. The kitchen is fully equipped and there is even a little something for breakfast which is very nice, especially when you rush from the plane and just don’t think to grab something to eat.
The heating is okay and it is quite isolated, so no problem with the noise.
I was sharing the room with à Korean girl, then a guy from the US and there can be up to 3 people in this room. As I am working it doesn’t bother me at all, and people are usually there short term so they do not party a lot, just go out to visit Dublin. What I would suggest, is bringing locks for the luggage cause there is no closed drawers or something in the room. My neighbors were very nice but is is often delicate when you share with people you don’t know.
Do not hesitate to rent with her ! Really nice !