I liked it. I liked it a lot. I liked the explorations of superpowers in a world where they're still comic-book fare. I liked the complex threads - but I also liked that they intersect in odd place - that all of them are connected in some way. There's a...style choice there I think will work well - the alley where the brothers flew is the alley where the cabdriver/professor escaped from the evil guy. Nice choice. Nice choice in having the other brother fly, not the nurse. And that race doesn't seem to be a factor - major plus there. Very well done.
And, of course, I *LOVE* Super-Hiro. Who wouldn't?