This is obviously going to be compared to Medieval 2 Total War. To get this out of the way, this is not a Medieval clone, nor does it try to be. There's no campaign or grand strategy element, the focus here is purely on the battles. Of which you have many, inspired by the actual historical battles of yore.
And as a result, what we have is a nice Medieval wargame you can get your teeth into. There's several campaigns, taking in everyone from England to the Mongols with a string of historical battles to fight, and a bonus campaign with battles which gradually unlock as you claim victory in the nation specific campaigns.
The graphics are nice, although they lack a little detail and shine they still look good. There's a little variety between individual soldiers within a unit which is nice when close up, although the animations are a little simple it doesn't detract from the overall spectacle.
The combat system itself is quite meaty, though the interface is well thought out and conveys all you need to know about your units. There's a lot of information it needs to give too. One nice touch is that when you select a unit a window opens up showing not just it's base attributes, but how those attributes are altered by it's current situation. This comes in handy when placing archers for example, since you can see immediately if they're high enough on a hillock to get any benefit.
Without a unit selected the interface is pretty minimal with simply the unit cards and minimap visible. Like in the Total War series, these cards will flash according to the unit's activity - red if it's in danger, green if it gets a boost and white if it runs away. There are also bars showing the current ammo, morale and fatigue levels too so you can see at a glance whether there are any units in trouble.
The usual troop roster of swordsmen, pikemen and archers is present, and units behave like you would expect, with polearms being good against cavalry, archers being good against massed troops and so forth.
The AI is a little variable, at times it will perform adequately and give you a good challenge, other times it will happily allow you to run down it's archers with your cavalry without lifting a finger.
There's a good series of tutorials to break you into the game, although if you're a fan of Total War or similar wargames you will likely not need them.
It would perhaps have been nice if the game provided a little more background information on the battles and the units. With the nod to historical accuracy you can of course do your own research, but one can't help feel they may have missed a trick there. The only other criticism is a lack of a random battle mode which hurts longevity.
On the whole it's a fine game which is likely to appeal to medieval strategy buffs and wargamers in general.