Shame that he doesn't have any story missions, though I suppose it's arguably better than leaving a large chunk of story unavailable to non-Sony players.
I'm not far into the game, so I'm not sure how the DLC character stories handle bosses (as far as I know, the main story is lacking, with only four boss fights total and most of the remaining fights being against robots), but you'd think that they could have included some of Spider-Man's rogues gallery in there, since it's one of the best-known in comics. (it's either Spidey's or Batman's, as far as I can tell)