I enjoyed the anime. But not the english version, oh man. Honestly, it scares me.
Though yes
Manga>Anime
But I would quickly pick up the second season if it was to ever came out.
Ending Spoiler
Though the ending was uber generic. Everyone he beat joins him. The sister takes the end, everyone fallows. Blah blah, he makes it and Agito is wearing a wedding dress.
Once again, restating this~
Akito/Agito = Hero