I think this show is a masterpiece. It has a really nice OST which i'll be listening to again a lot while i study. It's themes are dark and complex. It's characters are psychologically complex and have believable personalities, which makes them very relatable to. Also their visual design might be unforgettable and the action scenes very engaging.
It is also very consistent and believable, so i got completely immersed into the story for the whole 12 episodes.
I'd recommend it for almost everyone except maybe kids under the age of 12, as it gets really DARK and sad. It might make you feel a lot of emotions: Inspired, horrified, hyped, sad, happy, surprised, hopeless and hopeful ... 10/10 I'd rewatch it.