Just the fact that you get to stay on the Trinity campus right in the center of Dublin makes it worth trying to get a room here during the summer.
The price is fair. I stayed in one of the single dorm rooms. The room itself was absolutely enormous with very high ceilings, a twin bed (you could fit a king!), a leather sofa, coffee table, desk, bookshelves, a non-working fireplace and a very large wardrobe. I did not get a room with a private bath, but had a sink and mirror inside the room.
My room was on the ground floor near the front door, so that made it much noisier as you could hear the front door slamming shut at all hours and the cleaning staff comes in pretty early. Earplugs worked well so I didn't bother asking to switch rooms to something upstairs. Also, ground floor rooms can pose a security problem - windows in my room did not lock and it'd be pretty easy to climb inside to steal something. I kept my belongings locked in the wardrobe at all times.
Wish I had paid extra to get a room with a private bath. The toilets and showers were 2 flights up from ground floor. Actually, only 1 shower and 1 bathtub to be shared by all rooms in my dorm building (approx. 12 rooms), so get up early to avoid waiting for shower. Shower is pretty gross, so bring cheap plastic sandals.
I also did not pay extra to get the hot breakfast, but the continental breakfast included in the rate is more than enough food to get you through the day.
They have one on-campus laundry center which was pretty far from my dorm and kind of a pain because the Front Desk requires you leave your room key with them to get an entry card into the laundry room. They also didn't have change for the machines - so go to Spar Market across the street and they'll give you coins.
Internet cafe and airport bus stop are only 2 blocks away.
All in all, it is a beautiful, historic campus and the location cannot be beat as you can walk just about everywhere
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.