To start off, I know Black Adam is a badass, but to have one man against the entire world of superheroes is almost ludicrous. He has the same power as Captain Marvel, the same, and yet no one could stop him? Really? Even with "godlike rage", I still find the whole premise a little hard to believe. I thought when they first announced this story that he would have at least the Great Ten or some other collection of supers on his side.
And the narration by Martian Manhunter? I wanted to weep the writing was so bad. There was all this wild shit going on, but it was anchored with J'Onn's existential crap that made me want to put the book(s) down sometimes. How did Black Adam's mind make him emo?
As far as the Titans tragedy we were promised, Superboy Prime beat them much worse and no one cares about a reanimated corpse dying. Or Young Frankenstein. Though Beast Boy's minimal reaction to the death of a girl he supposed love with all his heart seems to be in line with the callous joking he did when he thought Everyman died.
I enjoyed 52 Week Fifty but, then, it didn't have Martian Monologue. I would have preferred Black Adam actually doing something in five issues besides causing random property damage and killing throwaway characters. Again, Superboy Prime already went there and set the bar pretty high.