I don't understand why this show gets crapped on so badly. The humor is silly and perfect for any young child, the characters are pretty likable, and the voice actors compliment their roles nicely. To me, I believe the show was simply ahead of its time. While I am not disappointed or upset that the show has ended since continuing a show as badly received and and strange as this one would be near impossible one way or another, it is a shame that people didn't see this show for what it was. It was one of the more underrated gems of cartoon history.
Fun Fact:
Nickelodeon passed up Adventure Time, one of the greatest cartoons of its time, for this show. It, of course, didn't really pay off, but both shows were great in my opinion.