I actually really enjoy Itadori as MC. He's just a kid who lost his grandpa and got involved in all of this. Of course he doesn't have a surprising past. And yet he's trying his best, from the beginning, even if he didn't have to. Also, I'm tired of shonen mcs who are invincible in seconds.
I'm feeling a bit lost but I think I'll just wait till the end and reread everything like I did with H&H