Thanks for the response guys! The wired aspect is a deal breaker for me though as wired controllers won't play well with my entertainment setup because they would be a tripping hazard. If they plugged into the Remote Plus controller the way the Nunchuk does then that would be doable but plugging in directly into the USB port is laughable at this day and age. It's really too bad because it's a cool looking controller.
I have never played a Super Smash Bros game so I'm really looking forward to its release on the Wii U. Does the game really require that many buttons to play? It seems like such a simple game from the gameplay footage I have seen.