I have been here about 10 times. Once for lunch and the rest for dinner. They have the best Fish and Chips. It is lightly battered, the fish is moist, and the Tarter Sauce is awesome. The challenge is they don't serve the Fish and Chips after 10 PM. I was here last night and was denied their fish and chip deliciousness!! We ended up going next door to San Tan Brewery and ordered the Fish and Chips there and it actually was pretty good.
Fish and Chips is a signature dish for Irish Republic and it is deep fried so I don't quite get why they would pull it off the menu at 10:00. I have had a couple of servers that were awesome, but for the most part the service is slow and often times the server is not rude, but you get the impression that they have better things to do and your more of a burden than a customer. Service and quality decline drastically if it is busy.
In terms of drinks if you focus on something from the tap you will typically be okay. If it is slow you will not have to much trouble with mixed drinks. If it is busy, you will likely be disappointed with your mixed drink. Typically it will be warm, half poured, and if you have anything with sugar on the rim (Lemon Drop) you will taste salt with the sugar. If they were more consistent with their service, food, and drinks and did not sacrifice their quality when they are busy I would give them a higher rating.