I have a thing for the underdog, but when it's a hero who is actually really plain and fades in the background as easy as can be (like seriously okay look at Volume 2 cover, he's just IN THE CORNER--like lmao what are you doing there bro just suddenly hanging)--have we ever seen him embodied as much as THIS GUY RIGHT HERE? The main guy? The guy who's bald and who just is fantastically hilarious? First off: I love this unorthodox protagonist. He's finally the strongest and then--oh man, you realize how lonely it is once you've reached the pinnacle. What I'm interested in seeing now instead of his ascent to gaining power (which, while always lovely, is always overplayed and focused on too much in shounen manga), is how he deals with his own very average hero lifestyle, and how he'll break into this whole systemic society--like will anyone (important) actually realize his potential and how much he's effectively saved them all from getting screwed over time and again? Also with characters that do recognize his strength, it's interesting to see how really uninterested he is with dealing with them (they're like nuisances at best ahaha). ALSO I'm pretty interested in basically seeing superheroes in manga, okay. Best thing.
In terms of nightly_001's complaint about the drawing style not being as detailed as ES21: first off, consider that ES21 is a (somewhat?) realistic sports manga. Now look at what we're dealing with for this manga: Superheroes. And when we think of superheroes, we think of DC and Marvel, Superman, Iron Man, etc. And that's from the West. And they have a peculiar style of inking and drawing, one that this artist has most likely kept in mind. You want a suspension of disbelief, and layered with the fact that this isn't meant to be much of a serious manga, detailed drawings on everything would not really help the tone or feel of it. Sure, details make it hella funny when employed right (i.e. stuff like Bobobo-bo Bo-bobo), but on the general side, funny manga usually don't tell to have as much srs bzns details as serious manga, right? To be an artist means you also have to be versatile in your medium. The CG effects on the manga be a complaint, but think about it: at some points, we get slow frame by frame "shots", almost like watching it on a show or a movie, right? I think those are probably are to help that feeling. There's a reason for everything an artist does, and seeing as this artist is frigging kamikaze God in his ridiculous art skills imo (like seriously, Eyeshield 21, if you haven't read it, go do it) I trust his judgment. (Then again, this is just my two cents.)