Will answered all my questions even before he hosted a friend and I.
The first day that we arrived he sat us down and drew us a map of the city, he told us about some transportation tips and that really helped us out.
This appartment is at a walking distance towards the "tourist" area in Dublin, no more than a 30 min (slow) walk.
We really enjoyed our stay.
Will is a very neat, respectful, organized and clean man.