Damnn, I just started playing this game two days ago and I love it, I still have yet to play the first Watch Dogs and will do that sometime but oooh man. The parkour isn't my favorite but the fighting and takedowns are incredible. It's insane that everybody has their own takedowns and fighting style. I found this one guy, he's a DJ and when he does a takedown he spins on his hand and kicks them in the face once they're downed, and from behind he turns them around, punches them, and sort of side-backflips and kicks them in the face. It's so cool.
if you buy the season pass you get the Bloodline DLC, a couple more missions and 4 operatives including wrench and aiden pearce but it also comes with Watch Dogs 1 for free so consider that