** MINOR SPOILERS**
It's got some issues, I've read many reviews both positive and negative.....as a big fan of the genre (both DC & Marvel), I don't think it's as bad as the majority of reviews make it out to be. It gets a lot of things right and is a beautiful film (visually, Zack Snyder always has a unique vision) it's a shame that its shortcomings drag it down several notches. It's not a completely original story, while the main thread/backbone of the movie is, it draws a lot of its influence from several iconic Batman and Superman storylines and that does the film as a whole a disservice. Mostly because all of the stories it borrows from were never related when they originally hit shelves. On top of this they shoehorned in some Justice League stuff, which if the movie wasn't trying to balance many things already, may have worked. Snyder put a lot of elements that could've worked for 2-3 maybe 4 movies all into this one. So it all feels rushed and forced at times. As a big fan who wants to see the forthcoming Directors/Ultimate Cut (30 minutes longer). This extended cut hopefully wil make all these extra plots make more sense. I'm not sure how general audiences will accept this film. It's gonna make a lot of money, which SHOULD equate to more films and the ongoing DCEU but DC may have to consider another option directorially, because to me this is strike 2 with Snyder in charge (the other being the highly divisive Man of Steel), I'm not sure DC/WBs long term plans for this movie universe can withstand another strike. All that being said, I think the movie was good enough to recommend people go see it and draw their own conclusions.
On a side note, as a fan of Batman, Ben Affleck's portrayal was AMAZING!! This motherf@#%er kicked some ass in this movie, he was physically dominant and imposing, dark & scary, and couldn't give 2 F@%ks about anything other than the mission. There was an element which will put off a lot of fans. But if Ben Affleck does indeed get a chance to write, direct and star in his on solo Batman movie, it'll be one I'm VERY eager to see.