Everything went smoothly.
We arrived late because we were on an evening flight that was delayed, but that was not a problem at all since it's a self check-in.
The apartment is well situated, really close to city-centre and public transportation. About 10-15 minutes walk to St Stephen's Green if you want to take the Luas, and 10 minutes to Temple Bar (and we walked slowly).
The apartment is modern and has everything you need. It's a one bedroom place but the couch is very comfy. The bedroom gives on a courtyard so that's pretty quiet. The living-room gives on the street and there were roadworks during our stay, so that was less quiet but it didn't prevent us from sleeping anyway.
In short: great place, great stay!