So here is the drama i've been waiting for the most for a long time now. So far the story did not progress anywhere, we pretty much only had world-building (and some banter) in the first two episodes that I've seen. I feel that there is no hook for me, other than the writer's name. I remember, when I watched the first episode of Goblin & I was already hooked by the birthday cake scene. Very pretty people are not enough by themselves to entertain me..
I'm pretty neutral about Minho, but I don't feel that he was ever a good actor & I really hope that this drama has more substance than his face, his acting so far has not been very convincing. I like Go Eun quite a bit, but I'm not yet sure about her character in this one.

Anyhow I'm hoping that things will go up from here, a 9/10 final review is still on the table. It's not going to be another Abyss, right!?

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edit: After seeing episode 3-4 I'm really hopeful. The story is finally on track & I'm kind of hooked, I'm genuinely looking forward to episode 5. MinHo's acting seems to have improved, perhaps he got more into the character as the filming has progressed. The world building stage seems to be over and I loved the teaser & how episode 4 ended.

edit2: I enjoyed episodes 5-6. I guess the only thing that's really lacking is humor, there is not a whole lot of it, but nonetheless I'm still excited about next week.
Here is me being nitpicy >>>
The writer is not the best at writing realistic warfare scenarios as we have seen in DoTS, we had some of that in ep6, probably it was an effort to jab at Japan due to their ongoing trade dispute. It's not great when real world politics have an effect on the entertainment industry like this, but I've seen much worse in Chinese works, hopefully there will be no more of this in future episodes. The second Jung Tae Eul detective Kang Shin Jae childhood origin story was completely unnecessary, feels almost like a byproduct of live filming/live writing. The drama had to be preproduced due to all the visual effects, but it's possible that the script was only written week by week as the filming went along, I hope that I'm wrong, because weekly writing almost never leads to a coherent script and that is pretty important for a high concept series to work.
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Final edit: "next week" came a little late, I had the time to binge the last 10 episodes over the course of a week. I'm disappointed overall. The romance got serious really abruptly, but Minho's acting was probably the worst it has ever been. Kim GoEun makes all these really lively animated faces & cries a lot, but Minho has no emotional range what so ever, their most epic scenes are completely butchered by Minho. I think it's safe to say that his bad acting killed the drama for me. The story goes real slow in between e6 & e12 and that would have been fine, if we had some cool romance, but Minho sort of ruined that, what else remains from the drama doesn't amount to very much.
I guess Kim Eunsook kind of borked the script, but objectively the script wouldn't even be that bad. With a better director & without Minho we could have reached the level of W, well too bad..
I heard folks discussing that the OST was really good, very similar to Goblin. Well, I'm not saying it's bad or anything, in fact is perhaps slightly above average, but to me this comparison doesn't make any sense. I feel that the 15th best track on the Goblin OST double cd is more valuable than all the soundtrack that TKEM has. It's pointless comparing them.

I just finished watching the last episode, which was probably the best episode of the drama and because of that I decided to give a final score of 6/10, but it's probably too high..

I almost forgot, good God the ad placements were terrifyingly bad. At times it felt like the entire drama was just an advertisement. There were some product placement scenes that straight up made no sense. I mean FL drinking something & then praising it is something that could actually happen, but Nari's supercars..