Hey Rude,
Done that festival many times.. Great time and great place. The Black river is so pretty and some great times to be had---- you will have your share of drunks on the river which can be fun and a hassle. Just be safe because the river patrol will be out in force---they hide in the woods and "sneak attack" people--they are really looking for under age drinkers and glass bottles.
Jakes Leg always puts on a great show been seeing them here in St.Louis every weekend for almost 30 plus years... They have a great guitar player... Vitamen A is also really good to---great energy.
The cons are the heat during this time of year--it can get very nasty with High Temps & high Humidity
Also have to watch for floods---we were there a few years ago and they came around camp around 2:30am and told people we might have to leave soon due to river rising---this is the last thing I wanted to hear after floating & drinking all day but we waited it out and it turned out to be ok
The people that run the camp ground are very cool too. Very laid back
Hope you have a great time---I'm going to see Jakes Leg tonight & tomorrow night too... yahoo
Have fun & be safe