I'm a giant fan of the series, though I controversially think City is the worst of the first three.
Knight really feels like the game City and Origins wanted to be. It's fantastic and fully has a grasp of Batman and what it is to be Batman. If you just want to boot it up and swoop around the city fighting thugs, you can do that, and it's great. If you want to do the detective stuff, you can just go do that, and it's great. Plus the story is really surprising me, considering the criticisms levelled at it.
Also the Batmobile. I goddamn love it. Basically it's a license to feel cool as fuck and it's super responsive and brilliantly integrated with on-foot Batman. You can do stuff like fight 10 goons in a street, get blindsided by shots from a drone-tank, hit the Batmobile button, it systematically batters through the streets to you, you leap and seamlessly land in it, blast the drone-tank in one shot, then fire off doing 0-60 down a street, hit the glide button and launch hundreds of feet into the air, swooping away across rooftops to find more baddies.
I mean what the fuck. The whole experience is utterly seamless and there's nary a frame-drop on PS4.
It's just so fucking great. So far I'm not understanding any of the Batmobile criticisms. Even when you're forced to use it the context always feels right.