Character Development: A
I love Dick Greyson as Batman. Part of Wayne's Batman mystique is his near infallibility, but that can also make him harder to relate to. Also, admit it, at some point we've all thought, "YES, Batman/Bruce, you're so tortured and brooding, you lost your parents, you trust no one, blah blah blah. Get some therapy! This shtick is getting old, and thank God no one ages in comics, because you'd be a grumpy heartless old man by now, and no one would like you." Maybe not in those words, but you know what I mean. Batman never gets to grow as a character. But switching Batmans (Batmen) lets the Batman grow.
The plot was a little convoluted but easy to follow, although the masked villain's identity was too easily revealed by a single clue. The writing was good, but there was plenty of show-don't-tell in the art, and I loved that Dick's fighting style was so acrobatic even though he's switched hero identities.