You could be quick to offend Dublin vets on this lol. Despite what you think, it is very difficult to get into. They require 4 A levels (more than any of the UK unis) and all As at that and there's only 60 places going a year. I don't know if they count the UK as foreign students or not or if foreign is outside the EU or even if they have limited places for foreign students. You don't need a PS or references, they don't interveiw and it is a lottery to who gets in but from what I've been told, this is all set to change in the next few years. Dublin is notoriously expensive to live in but it is beautiful and if you can stick the real Dubliner's accents it's not a bad place to live at all.
I wouldn't say it's a bad vet school because it doesn't interview or require a PS- all of CAO is like that and that's including all the unis offering subjects like medicine in Ireland. I wouldn't say they have bad doctors down in Ireland just because of that. A lot of my medic friends weren't interviewed for med school in the UK and their PSs were so generic they might have well have not written one anyway...does that mean they'll make bad doctors in the future? I don't think its fair to label it a bad vet school or their graduates bad vets but I definitely agree that UCD and the CAO system as a whole should be changed to get the really motivated people and not just those who are very academic and decided to be a vet (I'm not starting a debate here, just my opinion on it...UCD does produce some darn good vets).