Extremely underwhelming show.
It is quite a good, dark horror show - if you're able to ignore everything that is wrong with the show. Sadly, that is everything except the horror aspects of this show.

You'll see here awful and unlikable actors. Playing the most uninspired cardboard characters I have seen in a long time and I watch anime.
Boring plots and a lazy execution, both seem uninspired, too. Angels who like to torture poor, damned souls and acting against what I learned angels are there for in the religious believe in the first place.
As a viewer who looked forward to this, I don't care at all for any person that has appeared so far and I usually tend to like antiheroes.

I know this is more or less based on the Hellblazer comics and not having read those I can't comment on the quality and loyalty to the source material.
But I don't believe that this show is a good addition to this universe.