I've just finished listening to it for the first time.
I see it as an album that they could have put out after Volume 4, had they had any left over riffs from the previous albums, and/or if Iommi not suffered from writers block. Which in the end was a good thing because Sabbath Bloody Sabbath was great.
Tony Iommi is one of the very few rock musicians who seems to be getting better and better, even into his 60's. I've never been a fan of his lead work, but there are are a few passages on this album which sent a shiver down my spine, much to my surprise. Same was true of Heaven and Hell (band). It's not just technical, I think the man expresses himself in a much more authentic manner instead of just wanking it out as I felt he often did back in the days.
Ozzy... I love Ozzy but he has one of the least dynamic voices
ever. Which isn't all that bad when he's signing higher notes because, it feels more natural to hear him pushing to reach those. But the range where most of his vocals reside on this album coupled with his very static dynamic range and tone make things monotonous at times - I caught myself feeling that it's almost as if the proper vocal tracks hadn't been recorded yet.
But hey, that's what he has to offer right now, that's where they are and the album is still enjoyable.
Geezer is Geezer, I've always loved his playing and this album is no exception. Along with McCartney, he's probably my favorite bass playing guitar player. :)
The drummer - I'm w/ Steve on this one. The guy does a very good job, but Appice would have brought it to the next level and potentially could have been a part of Sabbath instead of just accompanying the guys.
Methademic is awesome, though imho closer in style to the Dio era stuff. I couldn't help but imagine RJD singing that one.
Anyway, those were just my first impressions.
And huge thumbs up to Tony Iommi!