I understand that some felt the movie was a bit like Tarantino at the beginning ... but you can't really put this into a box. There is so much going on - not everything is working - or rather flowing like a river. To put a pun into this. There are a few things that may have gone over my head at the first time viewing, but I know that you can't watch this and have a black and white view on things (no pun intended with this one). There is a lot of grey area within the movie and the moral compass you may have, will freak out on you.
That said, there is violence and there is a twist that I did not expect to happen like that. But having said that, the special effects this uses for exactly that are not worse than any big budget movie (imho). And this was clearly made with a fraction of the money any Hollywood Blockbuster is using. This played at the Fantasy Filmfest in Germany and it fitted right in. Try to read as little as possible about this and enjoy the crazy and out there story that also is shot very beautifully - landscapes and framing wise. The latter even in a one-shot that is filled with action and works so smoothy you may not even notice there is not a single cut in it.
If you're open minded, go ahead and broaden your horizons ... in more sense than one.