I hear very little about it- it's the only one that's only a medical school, ie. no large university attached so consequently you hear little about it. I do know it's well respected, but would come below Trinity in the pecking order, probably not by much though. The grade requirements will be slightly less than Trinity, but still steep, and more than required in the UK (which is the same for every course- Irish requirements are higher). If you're going to be paying international fees, you should be looking at the best university in the UK or Ireland that your grades will get you into. If you lived in an EU country, it would be different, as your fees for Ireland would be a pittance compared to the UK fees, but international fees- not much difference regardless of country/university. Worth thinking about also that the cost of living is higher in Ireland, in paticular in terms of accommodation and food.