It's one of those shows that's technically aimed at children, but it respects the adult too.I watched it when it first aired and I rewatched it a second time around 8 years ago. Characters and writing were great. Just never felt amazing, like something I'd rank above other shows I've enjoyed. I don't remember the world building being that good per say. Better than a lot of other shows but not really deep or focused.
And it tackles a lot of really adult subject matter.
I'm a bit surprised that you wouldn't love it. I would think you'd be interested in stuff like the world building.