Excellent world building, great sense of back story without getting discursive, excellent effects (mostly), and great characters.

This one thing, though ...

Some things you just have to accept in superhero movies. I won't bitch about the vibranium, or the tech, or the magic herbs. That's the price of admission.

But [here thar be spoilers] all the internal people who turn on him, it's because he doesn't do anything about Klaue. But getting Klaue was literally the first thing he did when he took the throne.

The only reason he didn't bring Klaue home is because Killmonger broke his partner out of custody. And now we're overthrowing the king in favor of that guy.