I had a gift certificate for Rooney's so I went with my fiance for the first time last week. I personally like the ambiance at O'Shea's downtown better (smaller, more quaint) but whatever.
The service was decent, although it wasn't that busy, so really, how bad could it have been? (I retract; I've experienced worse when places were almost dead.)
We ordered the fish and chips which came out really, steaming hot -- quite tasty -- and the shepherd's pie. The portion's were bigger than we expected (always nice) so we ate the fish and chips and took the rest of the shepherd's pie home so I could have it for lunch at work.
I heated the shepherd's pie in the microwave for about a minute and then popped it into the toaster oven for a few minutes to crisp up the mashed potato. *Yuh-mee!* That was the best left over meal I had in awhile! It was too large of a portion for me to eat myself but it was so good I couldn't stop! lol
Cost is moderate and like most Irish pubs/restaurants, it's casual attire. It's kind of sports-minded, which is why I like O'Shea's better. But if you live in the western communities I think this is a great place to get your Irish food fix. I would probably go again if I was out that way.