Zack Snyder’s Justice League - quick non spoiler review

1) Same pros: The overall plot (which is fun) hasn't changed.
2) Same cons: The overall plot (which is unmemorable and it doesn't live up to the hype of seeing this legendary team on screen) hasn't changed. Too many characters are crammed in, so they're not all properly developed. Zack makes so many individual moments feel like the most dramatic event in the world to the point of exhaustion.
3) New pros: The fact that it's 362 minutes long and doesn't feel like a drag is impressive! The multiple subplots don't feel rushed anymore. Some scenes contain new songs that fit well, while others don't have any music anymore (which highlights the intensity of the moment). More time is dedicated to Cyborg at the beginning in a way that makes them even more likable than before. The Flash gets a brand new scene where he's at a pet store. He sees a young woman in danger and he saves her, while showing that he knows how to treat animals. Steppenwolf now has scenes where he and Darkseid (his leader) discuss the evil plan. Even though they're clichéd, I was so invested because Steppenwolf was showing a surprising amount of emotion. This is the first time the words "Wonder Woman" are uttered by a character, making her name official in-universe (wait, should this be a con since it took so long for this to happen?). There's a new epilogue that sets future movies up. I know that has annoyed people in the past, but it's done in a smarter way. Instead of hinting at what's to come, they show it. And because "it" is something that destroys the world, we see our heroes at probably their lowest point, so we feel the urge to find out how they arrived at this point. Not since a certain episode of LOST has foreshadowing (if you can even call it that) been this exciting!
4) New cons: Some scenes contain new songs that don't fit. More time is dedicated to Aquaman at the beginning without much purpose. Do you remember his scene with Mera that explained his past? Now he also gets a scene with Vulko (a character that actually debuted in his solo movie) that's not different enough to avoid redundancy. The Flash gets a brand new scene where he's at a pet store. He sees a young woman in danger and takes more time than needed to save her. Sure, being cocky about his powers is part of the character, but if you're going to show him doing other things, can't they at least be things that matter?! Something other than admiring the woman's beauty?! How can you even feel smitten in a situation like this?! When Steppenwolf appears in Themyscira, the Amazons try to trap him in a chamber while Queen Hippolyta tries to protect the Mother Box. This time, said chamber falls from a cliff, but Steppenwolf and his Parademons emerge from the water. Look, this is the introduction of the villain. Anyone with half a brain knows that he won't be stopped so early in the story. This was trimmed in the theatrical cut (Steppenwolf simply destroys the doors of the chamber and exits) and it should've stayed that way. When he sees that Steppenwolf is about to kill his father, Cyborg attacks. This time, he lets his emotions take over, while he was a lot more in control in the theatrical cut. There's a new epilogue that's ruined once we discover that it's Batman having a nightmare. I know that doesn't mean it won't happen for real (it's most likely a premonition), but presenting it as a twist (especially one of the worst of its kind) made me roll my eyes. Not to mention that the image of him waking up makes the scene lose momentum. It gets worse once an alien (and future teammate) named Martian Manhunter shows up. Even though Batman has seen all of kinds of beings by this point, I still don't buy how he reacts so calmly to this visitor. Actually, his chill attitude implies that the nightmare didn't have any effect on him, taking away all the dramatic weight.