Non-spoiler review

Story: Similar to Gantz in terms of if being revolved around the death game. Minimal plot armour as most events are left to logical reasoning. Ending may be good or bad depending on how you interpret it. Personally, I felt like the ending was a big middle finger to the face and goes against one of the most important rules in storywriting. (Not gonna elaborate more on that as it would be spoilter worthy)

Art: Consistent good art style, but not anything extraordinary

Character: Wide variety of character personalities. However, some character tropes were left unexplored, possibly due to the surplus of characters at certain points in the manga. So some discretion is required.

Enjoyment: If you enjoy thrilling psychological warfare, this is a must go. There is physical fighting in itself, but not on the level of the aforementioned.

Overall: A solid 7 as there were few loopholes, consistent pacing, and some epiphanies that I gained from this manga.

Tip: DO NOT READ THIS NEAR EXAMS, preferably during holidays as its quite addicting. Managed to read it in 2 days at the expense of my sleep.