Okay! So to elaborate more, the first half of the film, maybe first third, is just disjointed. It's very easy to tell that cuts were made to trim down the time, and while it never feels like anything important was left out, what it is missing are scenes that just so slightly stitch the the film together, something as simple as Clark just flying somewhere instead of appearing there. Thankfully, the second half of the film, aside from a small section that appears to be rushed or cut up to reach a specific place, flows really well and naturally. It never slows down in the second half, and it's kicked off with a bang. As someone who read spoilers and plenty of impressions and such, they can't prepare you for some scenes and their impact.
As for the characters I've been an avid optimistic of Eisenbergs Lex Luthor, and after seeing the movie I don't think they quite knew what they wanted to do with the character. One moment he's very Zuckerberg, and the next he's psychotic, then after that he becomes compelling even though they don't spend much time on his motivations. He has less presence than you'd think (at least for me) and a small quirk I appreciated is him talking about his fathers past life.
Batman in this movie is very, very traumatized. I recently watched Dark Knight Returns this weekend, and the trauma between the two versions of the characters is about on par. He's cruel, unrelenting, and probably has the biggest character arc in the movie. They really nailed certain aspects of Bruce, such as the billionaire playboy.
For the few scenes Gal had, she really nailed Wonder Woman. While her time was brief, you really got to know the type of person she is, and that's someone who really doesn't want to deal with the world of man anymore. Won't say much more on her.
Superman in this movie struggles with finding his place in the world. Circumstances of the movie pull him from one side of views to another, until ultimately he is lost. This isn't your boyscout superman yet, but he is getting there. The movie and his arc was about finding his place in our world and the world finding a place for superman. Cavil did a fine job again, but was out shadowed by other performances who had more to do.
There's some little Easter eggs that you may not miss too. I believe I heard one for Mask of Phantasm, a joke by Perry which references the year Superman first appeared in comics, and I think I heard one for Shazam too. Keep your ears peaked.
The nightmare sequence was also extremely out of place and it definitely should have been cut or reworked into something else.
As for the rest of the cameos; some say they are out of place, but the film doesn't focus too much on them. One actually caught me off guard with how it's portrayed.
That's all for tonight though. If I had to give it any sort of rating or predict one, I'd throw it somewhere between 79-87% depending entirely on how certain people feel about certain things.