Just played ZombiU for a bit.
And I'll never play it again. The game may be good and the Gamepad is utilized quite well (using it as a backpack; having to look away from the screen just as you would look away from your surroundings in real life while searching your backpack...it's nice and adds to the atmosphere).
However...the Gamepad has to be the worst controller I've ever used. It's too big, it's uncomfortable and it's just not suitable for playing games. Shame, as I was really looking forward to playing ZombiU
Thank god, I'll be able to play Smash with other controllers