I rate this pretty low.
The first half of the series was pretty well done, no major complaints and I was enjoying myself.
The second half is rushed, rushed, rushed and it suffers for it, especially given the short length.
I appreciate the music and an anime that doesn't rely on telling.
But that said it's still far too short, leaves characters underdeveloped, wraps up suddenly at the end far too quickly, and leaves far too much unexplained over all.
It just ends up being a lot of spectacle with not a lot of substance behind it.
Also, there's no point to watching it if you've read or watched the
original Devilman, or seen Demon Lord Dante.
ETA: Also there are some extremely obvious plot holes happening in the final half.