I've ridden the light rail and metro in five dozen cities around the world, including Tokyo, Taipei, Düsseldorf and Dallas. Dublin's Luas (Gaelic for "Speed") is just as good as any mass transportation network there is. The trams are clean, modern, efficient and speedy. The stops seem to be more targeted for the locals than the tourists but they work fine.
Ticket kiosks are easy to understand and if you purchase and put value on a Leap card, you'll save a bunch and not have to be concerned with tickets. Just tap and go plus they work on the buses. I've not been asked to verify my ticket. I am sure that they do check them, but I've not seen it happen.
The Green Line (of course it's green - this is Ireland!) opened in 2004 and with the addition of the Red Line a few years later, there are now 67 stations and enough miles of track to host a marathon. With stations across the city, the Red and Green lines get you just about anywhere except the airport. For that, you need a bus. Like lots of cities, Dublin's International Airport is a good ways from downtown.
I felt as safe on the Dublin Luas as I did on any other metro anywhere.
[Review 1991 of 2024 - 171 in Republic of Ireland - 23013 overall] read more