The show is an excellent parody on the Superhero genre While it doesn't contain 'a hero's journey' within it's 12 episodes, it does an excellent job of not making you care about the origins of the main character because there is simply so much of his craziness to enjoy. The Master/Disciple equation is fairly run of the mill with some great humor thrown in. Saitama equal parts Lazy, Eccentric, and Mature. Each facet comes to light under different circumstances and not all at once, which leaves you wondering what his next move/thought is going to be.
The standout quality in this show is the animation. Studio Madhouse spared no expense in breathing life into Yusuke Murata's beautiful artwork. The fight sequences and character designs are crisp and clear and the show boasts a good background score to compliment the various situations (especially the fight sequences)
If you haven't read the manga, then please do so (it has advanced greatly compared to the show) if, however, you wish to keep yourselves on the edge of your seats and wait for further craziness, then with a show like One Punch Man, the wait is well worth it.
