Brilliant if I may say especially the last 2 episodes.This show managed to display at its finest how a world filled with demons/devils would look like. The use of the subtle details has also a big contribution in displaying the madness from the devils world or the peace and relaxing days from the human world.Warning this show has a lot of violence and sexual content and its not for any weak heart so you have been warned for those who want to watch it.
The way it made a contrast between the madness from the world of devils and the mundane life of humans is one of this show strongest points. The message sent is also strong about humans who are no different from demons at all, they hate and kill each other, their selfish and care for their own person and their carnal desires are no different from a beast. But despite all of that in a world filled with despair and chaos a little drop of kindness and compassion still exists and this anime did a great job at portraying that.
The mc is also something to stand out in this show. He is neither a human or a devil but instead he is a bit of both sides a Devilman. The fact that he sherds tears each time a person is sad or died proves that despite his devil appearence he still maintains his human heart intact (emotions).
One of the things I found interesting in this show is the yellow color for the devil's blood. Probably being part of Yuasa's visual vocabulary to sent a message I don't know either but it had a meaning in the overall image.
The other characters are really interesting and it was a great trip to watch their growth in this anime. One thing worth mentioning is the clash of ideals and beliefs between Akira and Ryou across the series and the final result of their settlement.
My favorite stuff is from the last two episodes , the subtle change of the flowers who wither as the person who took care of them changes bit by bit , the flashbacks during the last fight , the relay race to pass on the baton to the next person and finally the ending scene were we have two moons instead of one. Brilliant as expected from a director as Yuasa. Check it out you won't regret wasting your time.