I picked up Arkham City for my WiiU a week or so ago, and I love it. I really enjoy being able to glance down at my map, and the hacking minigame works really well with the touchpad.
I also really like the hacking because it's a great example of keeping a consistent experience across multiple forms of play. A major part of the game is finding the thing you need to do while avoiding being detected by enemies, and that's the hacking in a nutshell. It's also quick and easy and there's relatively little punishment for failure, so even if you don't enjoy it then it doesn't tarnish the experience too much. Compare that to playing Pipe Dream to hack in Bioshock, which was out of place and broke the flow.
One thing I really don't like is the blatant misogyny, and I'm not just talking about how all the female characters show off their cleavage and all the grunts shout "*****" at every opportunity. Actually I am, because it's toxic and awful. I always switch to playing as the animated designs, and that's partially because that Catwoman costume has a thing we in the business* like to call "restraint." Ooh, I should play New Game Plus as cartoon Batman. That ought to be hilarious.
I'd also like Catwoman to have more gadgets. Actually, what I REALLY want is a DLC mission where you play as Batwoman, because she is the best superhero always forever.
So yeah, Arkham City: really fun on the WiiU, but has problems.
*The business of using names for things. It's a very large industry, though not lucrative.
