Think of this game as Wii Sports Baseball 1.5 - which is mostly a good thing.
On the good side, this game is a great hitting sim that really uses the Wii-mote. You have to swing early to pull the ball and late to go the other way. If you are right on the ball, you go to center. This is exactly how I hit in slowpitch softball. I love it.
The game also takes your swing plane into consideration. A downward swing will drive the ball into the ground. A level swing is a line drive swing. An uppercut hits fly balls and popups. Again - this is very much like hitting in real life. The bunting controls are even well done in this game.
Sounds promising...When the ball is hit, you gain control of a fielder. You can shake the Wii-mote to get to the ball faster. It is decent - very similar to WSB2K1.
The throwing is great in this game. You have complete control (as far as I can tell) over where you throw the ball and when you throw the ball. For example, if you hold the ball after fielding a base hit in the outfield, the runner will keep going. You then have to either throw to the base to try and get him, or, if he is running home, you can press B to throw to the cutoff man.
Throwing is cool because while you use the D-Pad (or B if you want to pick the cut-off man) to pick where you want to throw, you have to make a motion to actually throw. I have to admit - I was really getting into this.
Wii sports Baseball, but with MUCH more control. The gameplay is super fun. I consider this the funnest baseball experience yet on the WII. Superb control over pitching and batting, with the fielding being semi controlled by the ai, leaving you to make only the big plays like diving leaps or jumps at the wall to rob a homer. A power meter exists similar to the Bigs, but unlike there, where it was only for pitching or batting, it becomes an essential strategic tool for baserunning and fielding as well.
Replayability; While it lacks the depth of a Power Pros, which is arguably the deepest sim experience given it's reached it's fifteenty console release in Japan, the World Series mod and actually very fun minigames make it replayable for the long term until another baseball game comes along that can mimic the excellent gameplay of this game.