It works as a comedy, but the action isn't all that great, and I suppose that's to be expected with a guy that finishes his enemies with one punch. There's also a noticeable drop in the quality of the artwork whenever there's any intense levels of animation.
There is one caveat I have with the story though. If you go to school for physics for instance, the university will not expect you to have strong writing skills, so it sort of didn't work for me when Saitama was given a rank C for turning in a bad written report. Especially when he outclassed other heroes by a wide margin. It was a really silly choice.
I don't really have much else to say other than I found it to be a rather average show. There was nothing that really blew me away.
