It's not all that good, but not bad either. Overly long (almost three hours!), yet too short to make me care about anything happening on screen since I had just met them five minutes ago in MCU time. Basically, the issues with something like Justice League/early DCEU are present here. No emotional attachment. Also very exposition heavy.
It's a different type of MCU movie and some people will like it. I do like that they took a different approach. I just wish the end result was better. This movie does have an epic feel to it, but to give an example of how it goes off the rails a bit, it
looks as epic as Dune in a way, but
feels like i'm watching Nomadland, except less actually seems to happen in this movie than in Nomadland at times. To make it as clear as possible, that is not a compliment.