First impression, the characters are acting ridiculous. The art is good for its style. The beginning might be too much (sex, drugs, desire) but it shows the dark side of humanity. I'll admit it made me queasy. It began to have a typical shounen feel to it once the main character fuses with Amon, which strikes me kind of odd. But again they did say his personality did a flip. As the anime progressed, it got me hooked and feel empathy from the revelations. Nearing the end, it's all just, "Is that for real?" and "Oh, wow." The way the plot was going got me impressed.
After finishing the anime, I could say that I'm satisfied of the end and enjoyed the ride. If you don't mind gore and like to watch the world burn, give this anime a shot. :)
