Button bashing is definitely not as forgiving as on other games. I got my ass handed to me a few times already.
I'm not understanding the Story mode though. It looks like a purely cutscenes-watching kind of thing, and not what I expected - in Injustice, the story mode was battle after battle with different characters going through the main story. Here it's literally just cutscenes with no fighting in between. I'll go through it a bit like a TV show I guess. Weird.
Still, I just can't get over how detailed these characters are, considering they're full 3D cell shaded models. Insane.