Yes definately go!
We volunteered at the Tassie Falls Festival over New Year's when I was just 7-8 weeks - dog tired after a days work and hardly saw any bands cos when I did have the energy to stay up past 8pm the smell of ciggie smoke made me wretch
But I'm really looking to my favourite festival in a couple of weeks: another camping one but this time I'm not working, I've got heaps more energy and we usually carve out a nice possie at the back under the trees away from smoke with banana-lounges, hammocks and eskies for everyone to meet and chill out when tired of the crowds - I reckon I'll just hang out there for the duration