I stayed at Kieran's place 2 nights and all went smoothly.
Kieran was very easy going regarding me being too early for check in as well as leaving my bag at the flat for a little while after check out.
The place is clean and well maintained. Well equipped as far as kitchen utilities are concerned and there are plenty of travel guides for Ireland/Dublin. Kieran was generous with his time and volunteered orientation tips for the city.
The location is superb. Just cross the river and you are at the city's centre.
I will not hesitate to stay at Kieran's place next time I am in Dublin.
Recommended.