I think the reason why everyone is so disappointed is because it wasn't like Attack on Titan. However, everyone fails to realize that it's NOT Attack on Titan. It is true that is gets its inspiration from the show, but it is completely different.
Honestly, I think it's MUCH BETTER than Attack on Titan, especially for the characters.
Ikoma is smarter and more tactical (more than Eren ever was). All the characters have their reasons for what they do and what motivates them. One thing I particularly enjoyed was the character development. AND YES THERE WAS MORE DEVELOPMENT IN 12 EPISODES THAN THERE EVER WAS IN 25 OF ATTACK ON TITAN. The side characters learned from their own mistakes and became better, not just the main ones. Ayame became a better leader. Mumei realized what she was doing and began to trust the right people. All the people on the train started to realize that Kabaneri were nothing to fear. Even Takumi grew some balls and saved his friend.
The art style was amazing as expected from the same team.
The music was brilliant because of Sawano Hiroyuki. I'm already a fan of his music. He's amazing at what he does.
The storyline was great. I don't think it was generic at all. You guys want to talk generic shounen? Look at Fairy Tale and Bleach? Oh yes I did go there.
Honestly, I think it was one of the better shows from the spring season this year. You should give this anime a chance. It was one hell of ride. XD
~~SPOILER WARNING~~
Side Note: Everyone seems to hate Mumei. Mumei was not a bad character and nor was she annoying. I'd like to think she was brainwashed from her "brother." However, she DID redeem herself in the last 2 episodes when she finally realized what she had done. She tried to stop her brother, but before she could, she was already forced into submission. She developed as well as a character. People hate her for her mistakes and faults, but I think that's what makes her truly a good character. The fact that she has faults, but tries to fix herself. That's what makes her human.
