Has the same over-reaching premise as Tiger & Bunny, but a more snarky & satirical approach. Super heroes are celebrities, often intermingling with movie stars & music idols. Behind the scenes of the company running the heroes, political corruption & Crony capitalism work in the shadows. The media is only interested in entertainment value & spreads misinformation. A hero who gets no recognition or respect is outshined by his popular friends.
Like many mangas, this one goes through a genre shift, starting as a comedy that focuses on Saitama, then moving onto focus on action & teamwork, with plently of 80s style Eldrich horrors where the MC is pushed into the background & may be absent for large swaths of chapters.
This comic delivers hard on the things modern Marvel & DC have been failing at since they've lost their ways.
Eyecandy is plentiful for everyone. The male & female forms are a work of art in every panel. The detail of monsters & landscapes are mesmerising.
Highly recommend checking out the spoiler-filled webcomic, which is like a faster, condensed storyboard version of the manga with intentionally bad art. Those who are more invested in Saitama than the Hero Association may prefer the way it's paced over the manga, as Saitama's absences are shorter.
Other comments saying the manga goes in an entirely different direction from the webcomic are incorrect. The manga changes a few things & it adds filler & drags out situations, but it still follows the webcomic completely.