Hajime no Ippo was great until the series decided to repeat everything, no changes, barely any plot, and became worse over time.
Story: 6/10
the story is fine, the typical shonen manga with the protagonist wanting to be "the strongest"
Plot: 3/10
I know this series is supposed to be a sports manga, but for fuck's sake, make some changes, literally almost nothing that happens, matters.
The typical formula in the manga is like this: Ippo trains > we get to see the new opponent > Ippo nearly loses but wins in the last second > the cast doing "side quests" > rinse and repeat.
It was like that for the first 40 volumes, and it was good for a 40 volumes manga, just not a series that has been running for over 30 years now.
Characters: 10/10
possibly the best part of the manga, the dynamics are great, I don't really have any negative points here.
Art: 10/10
The art is fantastic, Detailed, and polished, Again no negative points here.
Overall: HNI should've been gone sooner, and ran way Longer than it should have. The "story" kept repeating itself and got old too quickly.