Saw the movie today and a few words come to mind: choppy and disjointed. It wasn't horrible, it wasn't great either - I'd go with okay. I think with BvS, much like the Dark Knight, too much got crammed and the film was the victim of poor pacing and transitioning. The intros of the future JLA players wasn't done very well and I thought for sure one or more of them would have had more screen time.
I'd sit through it again on DVD or Netflix. I say this all the time, and I'm glad I'm living in a time where we get to see all these comic book movies be they good, bad, or otherwise. Unless I missed it, at least I didn't have to sit through a thread where people were upset because Perry White wasn't, well, white. Some of you may recall the nonsense that went on here with the casting of Sam Jackson as Nick Fury.
Here's to hoping the future DC films improve I am looking forward to Suicide Squad.