(Good) Heroman

Series in one sentence:
Child gets a Ben10 arm cask.

Series in more sentences:
Joey takes a broken toy robot from the trash and fixes it up, but strange lightning strikes it and turns it into a giant living robot for him to control.
Soon after, hostile aliens show up on Earth and he finds out only his robot is able to defeat them, but the American government doesn't trust the unknown hero who took it upon himself to help them and an investigation is started.

I struggled rating this show. The story is fantastic, the animation is good, the characters fulfill their purpose, the voices sound fresh, but there always came a moment in an episode where I felt restless. Touching the edge of boredom, even. I don't know if that had something to do with my mood at the time of watching, but I wished for more robot action. I don't think it's fair to give the show an average+ because my bloodlust wasn't satiated, though.

I do think I would've liked this more if the main character was someone else. I understand why they went with the prepubescent underdog orphan -children connect more with children, that's why most main characters in cartoon shows are children- but Joey is too much of a bland good guy. A gorgeous rich girl is all over this little boy, while she looks way older than him. Everyone looks way older than him.
The main character should've been that absolute sex god, Psy. He could've been the underdog orphan with the robot, he even has a history with the girl's brother who's to blame for his permanently injured leg. A loser who became a loser thanks to his bully.
Joey's only "problem" is that he's a bit feminine and wimpy, though I can't recall the bully ever commenting on that or what it is that makes him unworthy of his sister.

Anyway, if you love superhero stories, it's a good one.