Aside from the fact that he seemed stupid, he was kind of ugly.

Ugly...? Ahahahhaha I never saw Saitama that way. His hairstyle may not be to mass preference, but he was never ugly lol. Also, he's kinda silly but still far from stupid. He may not be my fave character in OPM, but he's a likable character who would really grow on you. Liking him was really inevitable and I definitely relate with you.