I think this is one of the best heavy metal albums ever. If they ask me, it's got everything it needs (though I'm really not such an expert in rock music's structure or guitar playing or whatever, I just like to listen to it). This was one of their least succesful albums. Well it shouldn't have been.
They say, if the singer's not Ozzy, then it's not Black Sabbath. Well, maybe it's not Black Sabbath then, but it's still GREAT! Tony Martin IS a great singer too, as well as the others. Also, a band's identity doesn't matter if you like the music.
I won't analyze the songs one by one now, I guess I couldn't even do that. The music is simply fabulous. But this work does have a message in it's entire (which not every album does). I think it says, don't screw up your life and try to live it to the fullest. I like that.
We have to admit, this music was born in the glam period, which most people hate and I don't like it either. So what? We shouldn't judge things by that. All right, the drum snare does sound a bit strange, but that doesn't make it glam music, 'cause it isn't; fortunately, because this style did influence later Sabbath albums.
So you should get this, even if you think it isn't really Black Sabbath.