Pros: Its the Nintendo Revolution, controller is fun, its "for everyone", inexpensive comparitively, backwards compatible, looks good and comes with a game!
Cons: A bit of a week launch (no online gaming, no browser and small VC lineup), no Rare on VC which means no Golden Eye, some games make you look retarded when you play and take effort. I feel Zelda would be pretty much as excellent with a regular controller. Controllers are damn expensive.
I could make a very long list but those are my main points
Hope that helps.