This is wonderful for a pack-in, but mediocre if it was standalone. A superb introduction to the Nintendo Wii.
You get simplified versions of Tennis, Baseball, Bowling, Golf, and Boxing in one package. Perhaps too simplified. You cannot move your character in Tennis, only swing. In Baseball, if you don't hit the ball past the diamond, you're out. These sort of things seem to be unfair to us hardcore gamers, but seem great to the casual crowd. My personal favorite is Bowling.
The graphics are like the game itself - simple. All the characters are Miis created by you or by Nintendo, and obviously the ones by you will appeal more. Some of the Miis created by Nintendo just look creepy. All environments to the game are all simple.
The music is - you guessed it - simple. Smooth music is found in some of the games, but in Boxing it's a little more fast-paced. No music to be found in Tennis. So it's quiet...too quiet.
Multiplayer can be a blast, provided on everybody's preferences. Tennis seems to be the popular choice here, and same with Boxing. This game was absolutely meant for multiplayer, and by all means, play multiplayer a lot.
Everything about this game is simple. Hey, at least it's free.