I have never seen a single chapter, or animated episode of Kaisen, simply cause of how obnoxious it's young fan base is.
Now that it's over, all I see is fans mad that the ending was bad.
From a fan's POV, is it worth reading it anyway?
I stopped reading typical shonen manga a long time ago because the formula just doesn't make it anymore for me, I'm old. And I have to say Jujutsu Kaisen is the first shonen in a very long while I really liked, but it's only good until the mini arc with Maki and Mai ends, about half of it.
At first it's quite fresh, it has punch, has really good action with good hype moments, characters are good (specially female characters, which usually don't are in shonen), the magic system is whatever but has its quirks that make it interesting, it has some genuely heart wrenching moments I haven't seen in a shonen ever. First half is really good stuff.
After that, it starts to meander in the smell of its own farts. The author makes a battle royale, if you know, you know it's a terrible idea because battle royales in manga are the most braindead bullshit masquerading as something profound and this one is no different. He also gets trapped into the poisoned well Araki set up for the shonen genre with the stand system that less talented authors tried to copy and failed, with magic systems upon magic systems, and chapters being half exposition because it gets unnecesary complicated. The paneling deteriorates and action gets hard to follow. The final fight it's an excruciating and long winded battle against the final boss' plot armor the author had to set up because how the magic system got so bloated, with real time commentary from secondary characters because paneling got hard to follow.
Because the author also got trapped a little too much in the trope of "You have to kill characters because that means is real shit, bro", he had to introduce new characters that didn't had the time to develop properly and are useless and uncharismatic. Like, he could saved up the writing on the gambling guy, his boyfriend and the other old resurrected coot and nothing would have changed, at all. And I'm on the fence with the lawyer because he at least has an interesting background. And also another secondary character gets killed for very stupid reasons and its resolution is just braindead, his surrogate son just says to his father's killer that everything is water under the bridge cause life's a bitch. Like, whatever, dude.
This was hard for me, it was a candle transforming into a formless mass. It started really good and it deflated completely. I suppose if you are young and haven't read much manga in general you will find it better, I've seen people very passionately discussing the ins and outs of the curse system on twitter and I'm happy for them, but a magic system doesn't make a good story for me and it definetly doesn't hide the very obvious shortcomings this manga has. Still, I already had more than enough of my fill of shonen for the rest of my life and it genuely trapped me at the beggining, so there is that testament for its initial quality.
Just read until Maki gets powered up, then imagine she goes and kicks Sukuna and Kenjaku in the coot and everyone lived happily after, I suppose. That mini arc is the best part of the manga in my opinion, I think you should read this manga just for that.
Also also, he made the female character I was interested the most into anime Ayn Rand, pedophilia included. Thanks, I hate it.