The best strategy game I have ever played! Definitely the most under rated game out there.
Don't listen to Gamespot, the story isn't great but its still pretty good. And the difficulty level is pretty tough, but they introduced a new battle save feature which was a great addition. Now you can save after each turn so if you mess up you only have to start the turn over.
All around it is without my favorite strategy game of all time. Definitely worth your time if you have the time to put into it. Trust me, this a looong game.