It was my first hostel and I would definitely recommend it to any person who will come to Dublin for a few days. The staff is handsome and always available if any question - they can also advise great bars & restaurants ;)
Moreover, it is located in the city center and close to everything.
Concerning the bedrooms, they are cleaned every day, they aren't small, bathrooms are ensuite and clean too.
I've stayed here during 12 days, and I've nothing negative to say.