Unless I'm driving on the highway, I keep the VDC off. It's WAY too obtrusive.
I really, really, really, really wish there was a way to turn off the traction control and leave on the stability control (like you can on the Corvette).
Every time I take a corner even remotely fast with the VDC on, it cuts power just as I'm about to get "on it". That sucks, big time. It doesn't allow even a little bit of slip or wheel spin.