I will state this right now - there is nothing better than an epic trailer. In fact, there are sometimes I wish there would be movies that were made as just to be trailers, nothing more, nothing less. Then, there would never be any disappointment. I guess on the other hand there would never be the joy of a great movie either, which would be more than sad, but I still like this idea.
My experience with Superman is mostly limited to Smallville (which I love), so I would say I am anything but an expert. However, from the look of this trailer, this could be the Superman film that people have been wanting for a long time. We get the sense it will be more of an origin story that will explore the roots of how a Clark Kent actually became the superhero and the struggles he had when he did.
The trailer looks like it has Snyder's slick visual style and might actually get into some deep character development, which is something his previous films have been lacking. It feels like Christopher Nolan's producer credit can definitely be felt in this film as he helps shape the reboot into something more similar to The Dark Knight trilogy.
All I can say, is...I'm in.