Anyone whose been to the Dayton Celtiv Festival?

I'm particularly interested in seeing Gaelic Storm perform....I'll be sure to check out other musical acts as well...but the official schedule on the website keeps saying it's not ready yet and will be posted closer to the event. Which is fine, but I'm sort of deciding whether I'm going to spend all day Saturday there or just drive up after work on Friday...so I was just wondering if anyone has been before and you remember about the time they went on in the past. I'm inviting other people to go and they all have other stuff going on too so I want to be sure to catch GS.