Perfect economy, impresive detailed and diversed siege and counter siege weapons, pretty hard, though.
A timber man chops trees, make planks of wood, which are used to build structures and make weapons, the bowmaker man takes the planks and make bows, he carries it, then, to the armory, and then you can make in the barracks an archer.
Reminds me a lot to The Settlers.
An arrow fired from a higher terrain or tower is more accurate than fired from below, and from below is harder to hit an elevated target.
You have pitch!!! spill it on the floor, make a line with it, then wait to the precise moment, make one of your archers fire a fire arrow and watch your enemy's army run screaming like the human torch.
The diverse units and how real they look, they die, they move, what they can do. What I don't like, but just because it breaks the realism is that building just appear where you want to place them.
The only flaw I see is that the "campaigns" are really difficult, but just because of the place you begin, many times you are in disadvantage. Another thing to criticize is that it lacks of hotkeys.