I stayed for one week in at the apartment. It is very well located and there is a lot going on around. Very easy to reach from the airport (the aston quay stop is probably less than 1 minute walk from the door).
The flat is as on the pictures, fully equipped and quite agreeable. I didn't miss any utensil to cook.
On the street side there is a little noise but not that much, I could work there on my laptop. On the other side (the bedroom), it's much quieter.
In summary, you can just book here and you'll have a comfortable stay in the center of Dublin.