This is the most underrated series in Shonen Jump right now. I'm not saying it's the best, I'm saying it's a series that deserves a lot more attention and love than it currently gets. The characters are great, it has the BEST action in Shonen Jump rn, and there's a fair amount of subtly and nuance to the writing. Two of the main complaints I see surrounding this series are the art and story. The art is an acquired taste I'll say, but I do think it's important to understand that the author is drawing the series like this intentionally. You can see in his spreads and previous series, that he can do cleaner artwork. He's most likely using the sketchy art style to make the series stand out more, and it makes the action, in my opinion, feel more kinetic and visceral. He also fixes a couple of the little drawing mistakes in the volumes, so I have no real problems with his art. I will agree that the story isn't anything to write home about on paper, but I think that the series executes its story beats expertly. People always take about "this series took the shounen formula and perfected it" (not gonna name series), but this is the first one where I would stand by that statement. This is a series that I feel that many people won't give a chance due to the beginning being kinda slow, and it is I'm not disputing that. However, I think that as the series goes on the writing gets really good and the characters really start growing on you. I've always told my friends who read manga to get to chapter 15. If they can read to chapter 15 and see absolutely nothing of value from the series, I just recommend they drop it then, it probably just isn't their thing.
Long post, but nobody else is posting in this thread, so I think it's fine.