Absolutely awful. The movie's graphics are mediocre and at times downright terrible. I believe the reason why it has got such rave reviews is that it was heavily advertised as a strong representation of black culture. Thus people didn't want to *look* racist by saying bad of the film. It kinda feeds into the whole "we are more concerned with being called racist than we are with racism".
Killmonger was terribly written. He had potential with the black-supremacy(-ish) motivation which, for the most part, could have been believable. However, everything he says feels like a hammer labelled "the slave trade" is being hit into your skull. His last scene is the perfect example of this. One thing I could say is that the introduction to him in the museum was alright (could have been ruined by explaining what is racist in the scene, like almost every other scene he is in)
There is a scene with snow (no spoilers) which looks like white sand.
The car chase (no spoilers, it's in the trailer) has the second-worst CGI in the film.
Nearer the end has the worst CGI I have ever seen in a film with such a budget (not the biggest budget to be fair). Also near the end (kinda spoilers, not exactly plot related) when the rhinos arrived it was more than the nail in the coffin; it was a Viking, boat burning funeral but the fire arrow went out before it even hit the boat.
This isn't a well-structured review and it's very long for a Google review but I'll end it with this; the only Oscar this *could* deserve is for costume design.
If you haven't watched it, I wouldn't.