This is the first DC movie I've been optimistic for in ages. I really think it'll be a fun one, and heck, I actually saw the SUN in some trailers, as well as shades of green, blue, and red! DC movies had me thinking I might have gone colorblind.
Oh, and supposedly there's humor and the heroes aren't mopey, wet bags of cynicism... I've seen some comparisons between her character's personality and that of Christopher Reeves' Superman, and lord would that be refreshing from DC.
The short tweet summations from those who saw the early screening seem to be almost universally positive, ranging from loving it to liking it, so I'm quite excited.