Nice little game! I just tried a quick skirmish. I could think of tons of features to request, but I think the main thing stopping me from playing this much more is the speed. I wish I could hold tab to run the game at 6x speed or be able to configure the animation speeds somehow. It just gets a bit tedious to wait for the guys to slide around.
The UI/UX is barebones but I think it's already pretty decent. I didn't do the tutorial or anything but I didn't have any trouble playing, and I like how you can cancel and undo things.