Love it !
Right now to business it has great gameplay and is well worth the money you pay for it however its the game's graphics that let it down for example when you are playing battles the men sometime look like little blobs when i combat. This should not put you off though as the graphics you can live with.
There is also some cool historic battles like the Battle of Hastings that you can play a battle tutorial which teaches you how to move troops and besiege a castle and theres a campaign tutorial to get you started with the management side of the game.
To cut a long story short, Buy it!