I went in with low expectations due to the reviews and I loved it. Enjoyed it more than many recent Marvel movies, just because it was a bit less formulaic. If it wasn't faithful to the comic, who cares? It's not the comic. If you want the story from the comic, read the comic.
Particularly enjoyed the "confusing" jumping around in the story, because it helped make a long movie feel shorter. I mean, if you aren't confused by Game of Thrones telling multiple stories in each episode, you won't be confused by BvS jumping from one PoV to another.
Was the greatest movie of the year? No. It was slightly above average entertainment, I might watch it again on video, but it certainly wasn't as bad as some of the reviewers claimed it was. I feel like this is a case of everyone wanting to be Simon. If the movie has a single flaw, it's absolute shit. Sorry I don't agree.
Add it to the pile with Prometheus and Pacific Rim. It's a fine entertaining movie.