I think one could sum this one up with "Magic of the Eighties meets Fist of the Northern Star meets Mad Max".
It's rather gory, has some rape and sex slavery in the middle, is kind of predictable and perfect for those evenings of sitting down with a number of friends, a good supply of snacks and watching movies just for fun. Of course, commenting and laughing about the movie will be half the fun. But that's what it's there for.