This is a different film, it does what DC comics is all about. The humanness of the characters, how the superhero's are in the end driven by their human tendencies. It really ties the entire story from man of steel to bvs and to Justice League. Watch it for the brilliance of Zach Synder. He has definitely met my expectation from his other masterpiece, The Watchmen.
This is nothing like what we paid to go watch on the big screen. It's a shame really that this didn't come out earlier and that someone actually decided to not go with this, but perhaps in this dreadful year it's come as a welcome suprise.