Went 5 or so years ago and it was and still is the best stag do I’ve been on. It was a bit ‘up and coming’ then, think most stag dos heading that way were going to Tallin at the time. Cheap as chips, with the exception of the gentlemens clubs but they were still great value. Not one of us got ripped off or had trouble of any kind.
Try to find one of those local stag do guides, for a few extra quid each they’ll take care of you so well worth it IMO. We ended up going go-karting out in the sticks where they provided kegs of beer for between races and were happy for you to run each other off the track. Also went to a cold war bunker in the city somewhere and shot lots of big guns!
I couldn’t recommend it enough, but as I say this was 5 or more years ago. Hopefully it hasn’t changed that much but looking at Dublin now to when I first went about 15 years ago it could have gone downhill somewhat.