@Mondobizarrro - Yes, and no. The animation is Filmation of the 1970s. It's SUPER simple and in many cases hard on the eyes. But at the same time, it's what animation in the 1970s looked like.
The stories, though, are for the most part, great. The production team was very big on "This is Season 4 of The Original Series, and we will treat it as such" and didn't dumb it down for a kiddie audience. It is simply 30 minutes Star Trek: The Original Series as a cartoon.
@Mondobizarrro - And ST:TAS is simpler than He-Man. :)