I am absolutely _shocked_ at the reaction of some of the opinions presented here about what I think is actually a rather well written series. Obviously many here have not clued into concepts like irony, subtlety, and satire. Yes, some of the villains are clichéd, but they're _supposed_ to be clichéd. Like how the big supervillains are always supposed to have a secret lair, or always have to give away their big plan to Kim before they finish her off. (A favorite of mine is the villain who also works at a Costco-type super store, and instead of holding Kim above a pool of killer sharks, uses a pool of bargain-priced snapping turtles)
The dialog is pretty sharp, and I think it's actually one of the more quotable television series along with Buffy the Vampire Slayer and Gilmore Girls. My favorite lines? Probably how in the future, Duff Killigan declares himself "the world's deadliest cyborg golfer", which doesn't mean much to Ron, since "cyborg golfer" can't be a particularly crowded field.
To those who complain about the series not being "realistic"- you're not getting it at all. (People are actually complaining about the careers of Kim's parents? If I have to explain why them being a rocket scientist and a brain surgeon is sheer brilliance, then you're beyond help.) It's not a serious action show- it's part action, part satire, with some abstract humor and teen angst thrown in.