I already have it and allow me to share some feedback, this is a game that is really really beefy on system resources. The visual aspects and the learning curve will require you to have a good system and is best enjoyed with a joystick (to a lesser extent gamepad) - forget about keyboard.
The heart of the game is the new graphics environment and that really pulls GPU + CPU horsepower. Oh and one more thing, this game downloads it's live content over the internet - so a UL plan is highly recommended - min 50/100mbps