This probably would have been a 4 or 4.5 if it had just kept the Batman comics. I appreciate the other characters, but I just didn't felt captured by any of them very often. Batman, however, is sheer badass from the get-go in this one. 
 One thing that was kinda on my mind the whole time was continuity as far as power/skill... it seemed the Talons were inhumanly good at some point, &... quite fallible at other points. I know they're different people, but still. Also, at one point near the start of Batman's chapter, I swear they fly. Shit's confusing. 
 I loved that dude running Arkham having the balls to say "The Asylum has the greatest security measures in the United States - dare I say, the world." Just think about that for a second. 
 I actually don't have much to say about this book - the Batman chapters can approach spectacular, & young Damian is pretty fly. The rest is readable.