Peadar's place was well worth the money - particularly given how expensive Dublin is!! It's a little further out but is well served with buses that only take 10-15mins to get anywhere you fancy, plus you can explore the north side of the city more easily from here and the airport connection is incredibly easy!
Peadar was fantastic at communication, quick and responsive and checked in to make sure everything was going well. The space was spotless, relaxing and quiet with a good selection of vinyl to listen to when I used one morning to do some work (as about his niece's record, it was lovely!)
I would recommend the place unequivocally and stay there again if (/when) I return to Dublin.