I'll address what I consider is excellent about this movie before I share my criticisms. I do not consider this film bad, I am simply addressing these critcisms as they aren't pointed out much.

The characters in this film feel very real, and the overall conflict is quite compelling, to put it mildly. Zemo is a fantastic antagonist; it feels unique from your typical superhero movie and is quite realistic by MCU standards.

There are, however, two aspects of this movie which I don't enjoy.

1. The Humor.

The humor in this movie is unbelievably terrible, especially in the airport scene. It seems like it was written for young children, but a small child wouldn't really appreciate this film as much as other Marvel films.

2. The Sudden Action Scenes.

The action sequences in this film are definitely entertaining, but at times they seem to happen only to keep the kids watching from getting bored.

Overall, if you are knowledgeable enough with the Avengers and everything else, I still recommend seeing this movie.