Naru - yes I did. Very simple, just followed onscreen instructions. Didn't even need the book.
Spaz - This may be where the game falls down just a wee bit in comparison to Pokemon Stadium....I don't know, I never played it. Basically the gameplay is just "point the pokeball at the move you want and click it," OR "point at the menu selection you want and click it." Gameplay is pretty simplistic. My 4 year old could do it.
The story (what story there is), is that you are a novice trainer heading for "Poketopia," a grand island with many colosseums via plane (the cloud effect is great, but might have helped to have seen a plane wing, etc). Once you arrive, you are greeted by the receptionist, and here you can read through the rules, set up your first custom or rental badge, friend list, etc...then head out to the colosseums and start battling. My daughter and I bested the leader of Main Street Colosseum very quickly.
The second one, and only one of 3 I've seen so far, is my favorite, that being Waterfall Colosseum. But like I said, past that it's pretty much point and click and watch the little 3D guys do their thing....and they DO NOT disappoint in that. And some of them are just huggably cute.
I had to do the surf move again last night to make sure I had not imagined that bit about the water splashing the inside of the TV screen. I had not.
WiFi play is every bit as easy as transferring Pokemon - I have not needed to crack the manual once, due to the onscreen instructions.
This is not a game that will appeal to everyone, and I realize that - but for those of you waiting for Super Smash Brothers, or any other Wii online fun, if they make them ALL this easy to get online with, you are in for one more rollicking good time.
For those that said "When is the Wii going to take off?" - I'd say, judging from future releases coming up (via net and my Power magazine for August) that you might....JUST MIGHT (don't hold me to it)....want to mark this down as the start of it.