I kinda enjoyed it till the end For story it is not best and it is just average and generic. too many plotholes and scenes that left unanswered. I like the concept of the story but I don't think that 12 episodes is enough so it feels rushed since many things are not explained but rather just insert it to the story. It is a sci-fi genre so explanations are pretty important since many things in the story don't have much background in real world and some just exist only in the story. Sometimes they will show you this things without a brief explanation then goesto another scene and then something will happen and will be confused why is that happening and you will remember, "AHHH... that's the purpose of that thing I see".

they why 9?
it should be 7 but +1 because I like the character design and another +1 for the VA

Yeah i'm honestly biased with this(as I always do)