Overall? Less than impressed. The beer tour is gone (something I didn't know until I looked online trying to figure out where it was in the park), which I find a sorely missed item. We did pick a good time to head there, Monday was a day that allowed us to walk up to pretty much any attraction.
I think overall I am less of a fan of Busch Gardens because they are following the classical amusement park model, separating the water park from the main park. I understand that Water Country USA is supposed to be pretty darn good, but I have never been there. I much prefer when they are in one park (like Kings Dominion).
The rides themselves? Great! Almost all of them were new to me. Griffon was cool, Alpengeist remains a serious shakeup, Loch Ness remains a pretty cool ride, and Apollo's Chariot is seriously a cool fast ride.
A fun way to spend a day but it will be a long time before this Arlington boy head to BG, particularly since you have to drive past Kings Dominion to get there (at half the distance).