I... well... wow, this was.... it... what?! This is one messed up film. You can see that Tarantino wrote it, but it's all filtered through Rodriguez's directing. So instead of distinct western and asian influences, you get latino and southern ones, plus you get some totally random and silly stuff (think gun-leg from Planet Terror). Actually, though, the whole movie is entirely random. If you're going to watch this (and explicit gore fans should), I suggest not reading anything about it. You won't see it coming.
In a sentence:
What in the name of? This starts out like any other crime movie with some Tarantino and Rodriguez touches, but then... it goes ballistic.