poor reunion thing? the typical statement from people who think that music died in 1975 or 'round there... dehumanizer is a great album!
I don't think music died in 1975 (1995 maybe?  

 ).... but I have said more than once on here that I don't think 
Dehumanizer is very good - compared with 
Heaven and Hell and 
Mob Rules it sounds too harsh and a lot less melodic (IMO).  Dio sounds savage, as Blue said.... but I'm not sure I like it.
Having said that, I listened to all the Dio/Sabbath stuff last week before listening to the Heaven & Hell album, and in fact 
Dehumanizer is better than I remembered - I still think it's disappointing compared to its predecessors, but there 
is some good stuff on there.
Now, I'm not sure about that Heaven & Hell album.... it hasn't grown on me yet.  :P