I'm getting a Switch next week. If I get this, should I redeem it on the Wii U or wait to redeem on the Switch?
Basically, is your account balance shared between consoles?
Also the image of the card saying 'for use on Wii U and 3DS' makes me nervous. I'm guessing it's just an image from before the Switch released?
Yes to all of your questions.
Especially the first >