Great, except for unit AI and mouse control.
Foremost of all, this appears to be a very awesome strategy game. I liked the cannons most of all, and it was pretty awesome getting a few of em and blasting everyone. However, when I upgraded my general with a bow, I instantly disliked the unit AI. I was all prepped for going Mongolian hit-and-run style, but my suicidal general wanted to run TOWARDS the fifty or so spearmen that were chasing him. Also, my cannons never really shot at anything I told them to shoot. They'd seem to aim at whatever unit they wanted, not the closest.
Faster scrolling would help too. Using arrow keys is a drag, especially when you need to manage recruiting units and fighting a battle at the same time. Maybe rally points would help this a bit.
Pretty good game, but it has lame kinks.