Overall, I thought it was a kinda eh/10 first episode but interesting enough even though it felt like I watched episode 4 instead of episode 1, lol. But I guess that's intentional and a way to add more to the mystery. There were some really good sakuga and it reminded me a lot of Yuasa's way of animating at times.
Also, it gave me some really strong Lord of The Flies + Haruhi + Twillight Zone vibes, so I'll definitely watch it this season and I hope it can keep itself interesting.
eh/10? Idk I thought it was the best thing so far in the entire season. The directing, character design and esoteric environments, lack of music, and pacing were all fantastic and drew me right in.
As for what it revealed of the story I think it was a pretty perfectly executed in medias res and I'm excited to see more. At the very least this seems five thousand times more ambitious than anything else this season and the story looks like it actually wants to say something instead of pandering to increasingly niche fetishes.
I guess we'll see where ep 2 takes this.