Lower your expectations and you'll be fine...

Rating: 7/10 (3 February 2015)

I'm going to echo the positive opinions posted on IMDb. The film is ridiculous, granted, but doesn't deserve all the negative reviews.
Anyway, I enjoyed it, possibly because of the original (to me) concept, effects and gore, but just to put it into perspective, here's what I really thought of it:
Imagine a once-in-a-lifetime opportunity as a practising black witch where you've got to capture the heart of a white witch, a total of 12 children - one born in each month of the year, all at the same time during the 'blood moon'. It's very difficult and requires a lot of patience and planning, but after much endeavour you manage to DO IT. Get all the kids and white witches and organise an enormous witch-moot, or whatever they call it, up in the hills and attended by hundreds of black witches from all over the country. The culmination is a sort of supreme power that will give black witches the ability to live forever/be invincible (or whatever it is). So, considering the importance, you'd expect some sort of security or just plain common sense to ward off intruders. Oh no, NONE of that. Get a white witch with a mini-gun entrenched at an overlooking alcove who machine-guns the hell out of everyone and it's pretty much game over. 1-0 the good guys.
That's it. The black witches are annihilated and good prevails. Probably the worst ending in movie-making history, not far off the cavemen in harrier jump jets in Battlefield Earth, it's really quite bad.
But I enjoyed the spectacle and had a good time. It's a beautiful film with pretty good acting, nice effects, lots of marvellously evil witches and heaps and heaps of gore. Make of it what you will though.