Although some people compare this to Attack on the Titan, they are both wrong and correct, there is many similarities between to, for example, in both animes enemy of mankind shows one day and start attacking humans, in one it eat humans in second biting and turning them into enemy, there was no much explanation how they came to existance and where they attack first (ok there was some explanations for titans),
in both, people live in walled cities (stations), in both, there is group of survivors - solders fighting the enemy, in both there is those that are neither human or the enemy(titans or kabane),
in both there is serum that can turn humans into titans (kabaneri),
so there is lots of things that make Attack of the Titan and Kabaneri of the Iron Fortress similar to each others, both of them have good storys, although i like KnK(Koutetsuju no Kabaneri), Art is similar to AoT(attack of titans), sound is far better, Characters, could be better but they are okay, overal i like both, but i will say that KnK is better to me, although not good enough to deserve score 10,
i really hope there will be the second season, this anime deserve it,
