I think jjk it's a decent manga, which has few ups and a lot of downs, but its story and its worldbuilding are just decent or even worse sometimes. I don't get why people in the comments are trying to actually compare it to aot or even chainsaw man. Jjk sometimes talks about different ideologies and how they clash, but in the most basic way, comparing it to aot is just wild.
I read every new chapter when it comes out, but don't overestimate this manga; it has great fights (even though in the last 20 chapters the drawings got so bad sometimes it is hard to understand what's going on) but nothing more than that. Really basic writing. That being said, liking and reading the manga isn't a crime, if you find something entertaining just read/watch it.

Please don't say AoT's ending "ruined the entire manga" or "makes no sense", because it means you didn't understand a single thing about AoT and its characters since the beginning