I've heard two songs... I'm a bit disappointed so far though I haven't really had the chance to sit and listen. My first thought was "this kinda sounds like St. Anger."
I don't know, maybe I'm just not metal enough, but I think they're best when they actually being more musical than thrash. I still think the Black album has been untouchable. Songs like Fade to Balck, Hero of the Day, and Unforgiven II, however, are very much in the same vain and are amongst my favorits.