I'm new to guitar and would like to buy a guitar. I'm on a budget. I have seen Ovation Celeberty and wanted to know if it's a good guitar for a beginner? It's in the $300 range.
In my opinion, that guitar would not be good for a beginner. My advice would be to check out the Best acoustic under $300 thread, and specifically, I would check out the Yamaha F730S and the Washburn D10S.

Partscaster/Tele into a bunch of pedals, a Maz 18 head, and a Z Best cab.
I am a great Ovation fan, but I find the lower end Celebrity's a bit disappointing. They don't sound too bad actually for a laminated top guitar, but other manufacturers in this price range show more promising specifications, including some who offer Ovation-style imitations.