Been working my way through Brutal Legend these past two days, and i have to say i find it great. Jack does his role very well, as well as the rest of the cast. Ozzy just fits his role perfectly though. I have to say, the RTS style elements it has as well are quite an interesting touch. Not exactly the hardest to do, but can prove challenging none-the-less. At first, i thought it was going to be very short considering how few achievements i had left to do of the main story, but its taken a lot longer to reach the end than expected. Still got a few bits to do after all.
On another related note: I've never really been the biggest fan of Metal of any kind, but this hasn't been bad i will admit. I tend to put on the more classic Heavy metal when i get the chance, but its not bad regardless.