I was there yesterday, turns out their own beer is not available till the 15th but they have a great selection of bottled beer and some decent stuff on tap too, such as both Galway Hookers. I did not notice any other Irish craft brew though which is a pity.
One point to note though, the food is absolutely fantastic. I ran in to hendrixcat there too.
I will have to get the bus down to Galway in a few weeks to try their own beer, I was limited to one Galway Hooker dark as I had to drive home a few hours later.