I usually not really into science fiction but the storyline was so interesting, it keep me curious and wanting to know more. And my prediction for what will happen mostly were wrong, as the drama keep giving some twists. Well, there were some some slow parts especially in the beginning, maybe some plot holes too but it was great anyways. I like it a lot since I kept wanting more. 12 episodes yet the ending was not rushed, great. The acting was on point too. So I do recommend you guys to watch it, it's good :))