Last Saturday was the first time I played with this console and the first comment I have to say is that the right side of my body, from hip to shoulder is sore.
My friend and I played for hours (I'm not going to say how many hours because it's somehow embarrasing) The console came with the Wii sport package. We played every game (Tennis, Bowling, Baseball, Golf and Boxing).
My favorite games were Bowling and Golf. I love that your movements are transfered almost simultaneously and almost fairly to the game. It makes games hard, competitive, and fun! It's very hard to be solid and make good plays overtime and it's also very likely to fail.
We had a lot of fun and we can't wait to have all our friends playing together. I want to see how it is to play with 5 other guys after a good session of food, beer, and Black Label!