Reviews on this seem to range between worst ever and careful analysis of the movie compared to real live. Hello? It is an action movie, with futuristic elements to boot. Also, most reviewers have suspiciously only reviewed 1 or 2 movies and an IMDb account for several weeks or months. I call those reviews in doubt.
Is it a great movie. No. But neither are most movies by Bruce Willis, Sylvester Stalone and basically anything by Michael Bay. And still, most of you watch it. Quite frankly I rather watch this than yet another Die Hard franchise movie or something out of the Expandable series which is basically recycling for has-been actors.
So what DO we have here. Just a nice action movie, manga remake such as Aeon Flux or Ultra Violet, while the style is more reminiscent of Leon or Banlieu 13 (both by Luc Besson), but without the quality of either of the latter. Just a nice movie on a Saturday night or a rainy day with friends watching a cute naive girl kicking the crap out of some guys. Don't analyze the characters or the story, as you wouldn't with the majority of these kinds of movies, and you'll be OK.