Extremely excited for this. I was one who loved Man of Steel, for the most part - I think Zac Snyder has his problems, but I loved the tone and approach to the Superman story, and going forward I never really understood the trepidation towards Affleck. People that are skeptical seem to discount his absolutely killer body of work the last 4-5 years, and the new trailer sealed my confidence that he'll do a great job with this.
The plot of the story still seems pretty goofy, and mostly chalked up to, "THIS IS ALL JUST A BIG MISUNDERSTANDING", but I'm excited nonetheless.