Saby's place is just what you need should you want to be in a quiet neighborhood.
The room is perfect to sleep because you don't have any noise from the outside. A cool fact is that there are multiple sockets right next to your bed, which comes in very handy in case you have several devices and need to charge them. By the way, beware to bring with you the type G plug (the one used in the UK) as it's the same. I forgot to bring mine and the plug adapter have provides in the room didn't go through (with me) so I had almost no battery on my first day. -my bad, of course-.
Important also is location. You may already know that Saby's place is not in downtown, but that doesn't make it hard to go. In fact it's pretty simple. Make sure you get a transportation card (it costs 5€), and charge whatever you think you might need.
Dublin transportation system is kind of complicated but I think I can break it down to you: trains, buses and trams all can be paid with this card. If you validate your ticket it will cost you 2,5€. If you intend to only go through 3 or 4 stops then the price it's 1,55€. Remember circulation is on the left (as in UK), so beware to have that in mind when you pick up a bus.
There's a train station 7 minutes walking from Saby's and a bus one only 3 minutes away. The bus which connects you with the city center is 37 and it takes you around 40 minutes to get there.
Coming and going from the airport is pretty simple. Take the 16, 747 or 700 versus center and then either take bus 37 or the train at Drumcondra stop. The train takes around 30 minutes in comparison to the bus (unless I'm mistaken, there are no trains after 21:00 or even before, so take the bus instead.