The first season was excellent, with very great animation and impressive action sequences, being an amusing parody of action anime shows and the superhero genre.

The second season, while not as good as the first, was still very entertaining to watch, even if the plot was a little bit more conventional. (With the addition of the typical "rival" character, though there were a couple of interesting aspects in his backstory)

My vote vote for the first season is 9/10.

My vote for the second is 8/10.