Why? Because the only negative reviews are that "it's the most violent movie I've ever seen" or "unnecessarily" violent
I watched it and it changed my life. It's the Asian Martial Arts movie to end all Asian Martial Arts movies.
Here's the final fight scene from the The Raid 1 (Heroes are 2v1ing the Villain, "Mad Dog")
If that wasn't the best fight scene you've ever seen, it's probably because you've already watched The Raid 2