I watched Black Panther last night.
I think as a Hollywood film, it's a good step in the right direction. The film features a huge cast of actors and actresses with African heritage, and the film features female characters who are strong and intelligent, not mere damsels in distress. The film also focuses on different cultures that are not so known to us (yes, I realize Wakanda is fictional, but in most action films, it's 'Merica).
I know a lot of people say "but Blade already has a black actor, so does Hancock" etc. but seriously, go watch Black Panther and you'll see why people deem it as an important film to watch.
As a story though, I didn't think it was that awesome, to be honest. I liked the story and Michael B. Jordan as Killmonger was awesome (a sympathetic villain played very well), but it just didn't seem as fantastic as the Internet says it is. The film is incredibly CGI heavy... and I'm well aware most Marvel movies are, but to me, the CGI in this one just felt kinda off putting.
My favourite Marvel films to date is a close tie between Guardians of the Galaxy: Volume 2 and Thor: Ragnarok.
Still, I enjoyed Black Panther and would recommend it to anyone who either A - enjoys action movies or/and B - enjoys superhero films. If you're a fan of the MCU, then you've definitely gotta watch it.