Tons of great music, free stuff, water filling stations and SHADE. My biggest complaints would be the distance you have to walk to and from GA campsites and the cost of vendor food. $7 for a slice of pizza and that's one of the cheapest "meals" you can have, and while they do offer rides to and from campsites, at $15 each way there is no way in hell I'd pay for it. Invest in some decent footwear! Overall fun experience though and would recommend going at least once.
Always a good time. If you went in years past and complained about the bathroom situation, they have resolved nearly all of those issues. The new facilities make life 1000% better. I'll always enjoy my time at the Farm.