Going into Justice League my expectations were very low. After the dumpster fire that was Batman V Superman I didn't think it could get any worse. I do need to make a distinction on why Batman V Superman is bad. Obviously, Martha plays a big role in dragging down that movie, but simple character things like Batman probably killing people and actions taken by characters that didn't fit. Justice League introduces new problems and forgets some introduced in the "Dawn of Justice". You probably forgot that Batman V Superman had the subtitle Dawn of Justice which of course was ironic due to the fact that Superman died.
Justice League starts off strong. Compared to other movies, like literally any other movie, it was an average start. Since however this is the follow up to BvS, it was actually pretty good. The opening action scene with Wonder Woman was super cool and the tone was pretty spot on. If the movie would have stayed like that, I think the discussion of the movie would have been very different. The movie slows down though, introducing characters and backstories with setups that don't really pay off by the end. At this point, nothing is truly bad with the movie unless you count the weird shots of Wonder Woman. But then the movie takes a sharp turn, and by turn I mean it fell off a cliff. The movie goes from slow to bad very quickly.
The scenes with the Amazons is where the movie starts to get bad. The entire sequences are so poorly thought out that it just seemed so lazy for it to be in the movie. From there it goes from bad lines to bad story, to stupidity and continues in a circle. What I'm trying to say, is that it gets truly bad before BvS did. It really did go by in a blur of wasted potential. And then they changed how Superman is "brought back to life". The way they did it in the movie makes sense in the DCEU(if it even still exists), but it was just so dumb. There was no iconic black suit, there was no long hair. Everything iconic about that story was never used and thrown away. The whole movie was reduced to the too familiar dumpster fire of BvS.
Overall, if you can help it, don't see this movie in theaters. I did appreciate the 3D, but for the most part, I say that about every 3D movie I see. The movie was a hot mess that you should stay away from. If you are looking to watch a superhero movie, I would recommend Thor: Ragnarok.
4/10 Why do people let Joss Whedon make movies still?