Here's an example of what the match can be like (this is from last year):
http://youtu.be/w2wKCcmdLw0 (http://youtu.be/w2wKCcmdLw0)
While they are similar to USPSA field stages, the stage designer has a lot more leeway in terms of what they can require. (For example, in the stage with the colored targets, you could only shoot the targets that matched the color of the box you were standing in.)
...so the stages end up being a LOT of fun. Every target is falling steel, and it is a blast to shoot. Four par-time stages (par time means you have a limited amount of time in which to shoot, and when the timer beeps, stop shooting!) and one timed stage for a tie-breaker.
C'mon out and watch the Open division guys try to remember how to reload more than once on a stage! :)