Stop motion animation of any kind is a labor of love. Sure, computers have made some aspects slightly less tedious but the technique still involves taking hundreds of pictures and moving figures thousands of times. So even on a merely technical level this short claymation video is impressive.
But also consider the sheer quantity of gore in this clip. It would be impossible or at least highly cost prohibitive in most other kinds of video. The storyline too is fine. The same producer made earlier pieces that are much rougher.
Part One
Part Two