Pros: Jim Lee redesign, Martian Manhunter tease at the end.
Cons: Picking Scorpion seems like such a waste when there's such a vast roster of DC characters to choose from and so many are in high demand. I say that as someone who loves Scorpion, too.
His power attack seemed a bit lack luster when weighed next to the jaw-dropping ones in the game, too. Honestly, I thought his victory scene was cooler. Oh well.