I wasn't sure what to expect from this baseball game but I was not disappointed. MLB Power Pros 2008 is a lot of fun. I started a career and I'm in my 5th year now and it doesn't get old. I like the fact that there are a number of different ways to play the game which doesn't make it a one- or two-trick pony.
You can unlock a number of extra features in the game like stadiums, stances and uniforms. The capper for me was being able to unlock the throwback Brewers home uniforms with the "mitt" logo. Sold!
My 10 year old son usually returns or beats rental games from GameFly in a few days. We had this one for a couple weeks because we both loved it so much. If you're wanting a better playing baseball for the Wii than the baseball that comes with Wii Sports...run do not walk to try this one first.