Intense!
If there's one word to describe this movie, its intense. Its got a crazy pace and lots of ferocious set pieces.
Think of a Michael Bay film mixed with Outbreak or Contagion, and you have a small idea of what I'm getting at.
It has the over-dramatic love story, cute kid in danger, and all sorts of plot escalation when it could have ended earlier. There are a few cliches, but its one hell of a thriller.
I definitely recommend it to fan of Korean cinema or thrillers.