Heard its good, watched 2 episodes liked it but the anime is still airing so I'll probably wait till its close to finished. I usually only watch airing anime if its moe, slice of life or highschool since nothing much happens in the episode and there isn't much cliffhangers. I remember watching FMA:Brotherhood when it was still airing and it was a pain to wait a week for each episode (with the amount of cliffhangers), from then on I never watched any serious action anime or just serious anime until they are closed to finishing.