Wow. Very wow.
This movie is well drawn, executed, and has very few flaws. Many of those few flaws consist of many, many spelling errors (it's = it is, not a possessive, for instance). The only flaw that really wasn't resultant from a typo or improper grammar was how quickly the action went, and trying to read what the characters were saying while following along with what they were doing at the same time proved very nearly impossible.
If those two things are fixed in the sequel you obviously set yourself up for, the movie may in fact be better than some of the original madness movies.