This game is awesome.
Last week I got it to 200% done, now I've started on time trials. Doing one island at a time, getting gold medals on every level, up to Amiss Abyss in Sea Breeze Cove so far. I have been waiting until I score at least a Bronze on a level before I look at replays to get ideas on how to speed up. Most levels I've been able to get a Gold before viewing fast runs. Really fun stuff.
Anyways, I've just been having a great time with this game, much more into it than I expected to be, actually. It's been fun in multiplayer, and more fun for me in just getting better and better and filling in those spaces on the results screens.
And aside from a couple of times in multiplayer, or taking over for a friend to demonstrate how I do a section a few times, I've been using the Wiimote+Nunchuck, and it works just great. I kind of expected to favor the GamePad, really, but it's not even close for me, give me a Wiimote and 'chuck every time.