Oddly, the action sequences involving space ships usually looked quite nice, completely contrasting the stilted character animation.
They Wasted a Perfectly Good Plot: The show's premise is admittedly quite interesting, and it has a lot of good ideas and character designs. But the show is more interested in fart jokes and using overdone storylines to actually do anything with these ideas. And of course, the clunky animation doesn't help.
Uncanny Valley: Keep in mind, this show was considered cheap and ugly back in 2002!