This is literally the worst thing DC has done. Forget Suicide Squad, this is even worse. The over-exaggeration of female emancipation, the fact that none of the characters, except for Harley, is honest and loyal to the source material, and the lame villain, how simple the team defeats every enemy in the set, together with the many, many lame, unnecessary and boring jokes, makes this movie insufferable. Horrible, horrible movie.
If you're an adult who wants a mature film, this is for you. If you love excessive jokes, and simple plots, kind of like Avengers, easy to understand and follow, then maybe this is not for you.
Justice League I wouldn't call it a masterpiece, but for sure it makes the DC universe richer than it ever could. Sure, we need to know a bit more about each character, but this time every character can shine A LOT, especially Cyborg and Flash (I assume Aquaman and WW were left behind because they both have films outside this one, just like Superman who barely acts).
The plot is improved, the lore of the universe is huge, and it's kind of hard to predict what will happen after this movie since the plot could go anywhere. It doesn't leave you in a cliffhanger, but surely opens many doors to many possible different plots.
Overall, the movie is fantastic for any DC fans, and I'm pretty sure that many Marvels fan will enjoy it too.
If you watch a movie to have fun and keep thinking about it, then this is a great movie for you. Forget about that feminism agenda, or if the director is a "White straight male", this is not a place for that kind of nonsense, this is a film, it's supposed to portray whatever we like. And this movie can be really likable if you can just forget about your real-life problems, and focus on what the characters are struggling with.
The plot is complex. Kind of confusing, maybe a bit too much, but it gets a good idea after you give it a thought. The action scenes are fantastic, the music is amazing, and if you're pro-violence in films, you won't feel disappointed.
The only main problem I see is that acting, sometimes is weak, but the weird acting sometimes helps to the purpose of the film, since it feels weird, and some scenarios (which are great btw) are also weird the acting and the ambiance make a good mixture.
In short, if you like action movies and plot, watch it. If you're out here looking for "representation", "feminism", and some kind of realistic elements for you to feel identified... then, maybe this is not for you, unless you finally understand what the movie is about.