The TV remote is perhaps one of the best features to ever grace the Wii U. Having to deal with both the remote and the Wii U game pad was extremely annoying.
I would prefer the off-TV function more if it weren't so inconsistent between games (different control inputs in order to activate it), and if the video quality of the gamepad was actually better. I don't know if it's me, but the image looks dull.
Oh, and the whole retro compatibility of the Wii U is nice as well. Again, I would prefer it....if they didn't take away the option to load Gamecube games despite the console being capable of playing them, and if the virtual console games were more diverse overall.