I took my first flight from T2 on Feb 17 and returned on Feb 20 and it was a great experience. Was dropped off and there was no problem. It was an early morning flight. Checked in and cleared security in about 20 mins. All in all it was very quick and easy. On my return we were a while waiting for baggage but in future Aer Lingus will be my first choice when flying from DUB.