It's okay.
Much better than the awful Thor 4: Love and Thunder a few months ago, but very predictable and by the numbers.
Black Adam keeps repeating throughout the movie that he's "not a hero," except he pretty much acts as one in this movie and is way, WAY toned down from his comics version, who is a hundred times more brutal and violent and villainous, frequently killing thousands without justification.
I liked the Justice Society. The boy Amon was annoying. The undead at the end were a laughable non-threat when they are getting easily beaten by ordinary people wielding improvised weapons.
The mid-credits scene is very cool, but doesn't say the greatest thing for the movie when the coolest moment in the entire movie is the mid-credits scene.