First, this is a great location from which to explore Dublin. It's not in the tourist mess, but a close enough walk (approx 3/4 mile) that you can get there easily on foot or stagger home from the pubs late at night.
My space was simple and had everything I needed, though some of it was hard to find (I challenge you to find the silverware drawer or a second trash can). Had a problem with the water heater -- in Ireland it's heat on demand, and it was problematic -- but Karin responded immediately and I'm sure it's been dealt with. She is incredibly friendly and helpful, and provides enough information and recommendations about things to do, places to eat, etc, that you won't need a guidebook.
Two small downsides: It's a 4th floor walkup, so be prepared to haul your bags. And towels are strictly air dried, so unless you're heavily into exfoliation, you may want to bring/buy your own.