This is one of the few cartoons my children and I can completely enjoy together. Most cartoons just suck, and most "anime" that's good isn't properly dubbed into English which makes watching things a bit slower. (Although for Evangelio 3.03 I read every line, like I would a book, to her while watching.)
It covers interesting themes, but skips out on sexuality (mainly cause I'd do a poor job explaining such jokes off-the-cuff to my daughter). Yet it's fun enough that they never lose interest, unlike some Star Trek episodes.