Looking back on everything that has happened, I can say that this anime put me on a journey that no other anime has put me on before. It really makes one rethink our morals as human beings and the way we treat other living creatures, even ourselves. I like that this anime was not afraid to jump into the unknown of storytelling, especially one of a totalitarian society. It did its best to fit a lot of realistic depth and meaning into those 25 episodes and in my opinion, it was very well done. The amount of symbolism incorporated with not only the story itself, but the art, music and characters really proved that the creators were not just trying to put a veil on fudged work. There was a lot going on and yes even though I do feel like there were some plot holes, they at least addressed what they needed to address in a satisfactory manner. I would like to name some specific examples on how this anime was able to take things to a new level, but for the sake of keeping this spoiler-free, I say just keep the things I've stated in mind and point them out for yourself! Go watch!
