Depends on who the handling agent is, the time of day, and a host of other factors that are sometimes outside the control of the airline. Aer Lingus are usually pretty good, Ryanair are OK if they are on time, so the crew is available, and anyone handled by Servisair can be in for a long wait unless they are lucky. No experience of Aviance or Sky handling.
What would help immensely would be if DAA would get their act together and sort out things like access to the baggage halls, among other things.
Then of course there's things like the new A pier extension. Disaster if you are due to depart before 0645, as there's no facilities out there whatsover before 0600, even though some of the flights leave at 0600.
Last weekend, we got lucky, in that we arrived just as the C pier end security gates were opening, so were able to get "airside" in under 10 minutes at 0500, for an 0630 flight. The person next to us on the aircraft wasn't as lucky, he arrived at 0520, and got to the boarding gate at 0620 for an 0630 departure, we eventually pushed at 0650, and quite a few people boarded after 0630, some in a clearly visible state of distress, and it was clear they'd not had time to replace trouser belts etc after the security check, and it's a LONG way to gates A64 - A71, if there's any flights going from the "old" A pier gates that are on the ground floor of the original terminal building, getting past that rugby scrum can be difficult, or almost impossible if it's a 757 boarding from the gate at the bottom of the short escalator!!!!
And then there's the problem of the missing marquee. I do wonder what would happen if a fire inspector called out to the airport at peak time on a Saturday morning, I suspect that he might well seriously consider closing the entire operation due to overcrowding, the thought of trying to do an emergency evacuation of the check in area at peak periods is scary!!!
All in all, while the airlines do the best they can, what's not changing with any degree of urgency is the over complacent laid back attitude of too many of the people that are in comfortable pension for life posts with DAA, and no reason at all to exert themselves as they are secure from any contact with reality. I don't see that changing until DAA is removed from being a semi state company, and even then, it will take years to get the civil service mentality out of the operation, it's so deeply ingrained now that breaking the mould will be almost impossible.