I read the negative reviews here...All I can say is that I guess people who aren't familiar with a proper Irish pub might need to either culture themselves or simply find a new bar.\r
As for The Shamrock...it's great place to catch soccer or rugby matches. And, unlike most Southern California sports bars, you actually get commetary with the games (not some best of music genre CD blaring over the action).\r
If you're coming for the food, don't get your hopes up. It's standard Irish fare. The only thing worse than Irish food is English food (might also throw Scandanavian grub in that group). However, if you're coming for a good place to relax, catch a game, a nice pint or some live Irish music, you can't go wrong.\r
This is one of my favorites in The OC.
Pros: Soccer, Rugby, Beer
Cons: They serve authentic Irish food