Just saw it... It was a good movie. The visuals were outstanding. The overall theme and story was good... I liked the more serious tone that this movie took, as the last couple of Marvel movies were starting to segue too much into the silly and farcical.
Danai Gurira's character was my favorite by far: she does such a good job bringing her characters to life and having you root for them. Outstanding job.
In a lot of ways, and I don't mean this in a bad way, it felt like Thor 4: a mystical, antique aesthetic against a technological backdrop makes for great visuals.... Wakanda is a lot like Asgard: a veritable Garden of Eden. In that sense, it felt a lot like a long episode of 'Lifestyles of the Rich and Superpowered', and over here we see T'Challa's amazing super flying jet, and over here we see his amazing tech </Robin Leached>
But again, it was a unique experience, and that's what I love about Marvel movies: they each bring something different to the table, so that when they all team up together you really get into the characters.
I give it a B+