I really enjoyed this one. It has good action, some funny scenes, and a decent plot, but what sets it apart for me is the heartwarming friendship that eventually grows between the two main caharacters, even though they are initially enemies. Way too many Korean crime, thriller, and action movies, while well-written, tend to be all gloom and doom, which gets really emotionally tiring for me after a while, so I really appreciate this one for not going that route. Don't get me wrong, there's graphic violence in this one at times, but even so, it is unmistakenly a feel good movie. Highly recommended.