What are your impressions of the Mario Golf: World Tour demo for the 3DS? I've been playing it, and I'm enjoying it so far for the most part. I used to play a lot of Toadstool Tour for the Gamecube, so the control differences are taking some getting used to. I also don't like that you can't adjust your contact point on the ball while you're planning your shot to see how the trajectory changes -- something that you COULD do in the Gamecube version. Hopefully this feature is available in the full version, but I'm not holding my breath.
In general, I'm finding the golf to be pretty solid. I'm excited to see what the RPG elements will be like in the full game.