This is a very nice game but I have a pet peeve with games that play out on a scrolling map...and that is when the mouse cursor is moved to the map/screen edges, the map scrolls. There should be an option to turn edge scroll on/off. With edge scroll turned off the map should be able to be scrolled with the arrow or wasd keys, or perhaps right mouse button drag.
In this game the edge scroll is serious because just moving the mouse cursor to the end turn arrow at the bottom left of the screen will cause the map to fly away from the view that you may have wanted to keep.
So just put in that option and an alternate way to scroll the map and the game will be really good.