Pretty good! I really feel like a medieval lord when playing this game lol. The pixel art is pretty good and I like the small details like the shaking animation upon hovering over a menu item.
A few bugs:
When you lose an easy mode game and restart on easy mode, you get to keep your old units
Sometimes infantry will walk off the screen when returning from a battle
Even if you don't have enough money to pay the ransom, you can still pay it
Improvements:
Display a message why you can't hire new units (not enough money, not enough room, etc.)