This sounds to me like a clash of metallica and motorhead. More stripped down and simplistic than Jasons metallica stuff - it's not thrash, it's not rock, it's ... well.... metal (obviously)
The production has that everything louder than everything else kinda vibe - the bass, drums, vocals and guitars are all almost equal in the mix and the bass almost has that dirty motorhead sound in places.
Love it though why not 5 stars? because everybody gives everything 5 stars and I can think of a couple of hundred CDs in my collection I like more.