Very good, it's entertaining.
I like the story that entails 'Captain Marvel'. It's possibly not told in the most incredible way, but by the end I did enjoy how it unfolded and connected to what we've seen recently in the MCU.
Brie Larson is pleasant in the lead role, a tad wooden in parts but overall I rate what she gives this film. It's cool to have Samuel L. Jackson's character get a deeper dive and bigger screen time than usual. I also liked Ben Mendelsohn as Talos. Other cast members, like Jude Law, are fine if forgettable.
Everything else about this is basically what you'd normally get from an MCU production: strong action, great effects, solid humour and an interesting plot. This 21st film from the universe is a good'un!