Nifty twist on a Tower-Defense game, as you can be on Offense or Defense. Having more direct control of units is always cool.
That soundtrack is INCREDIBLE, learning it was all original is very impressive, and it sells the sorta bleakness of the world and the war you're technically in. The choir feels very melancholic, which once again fits. For a game about silly little guys picking some berries to fight another faction, it fits perfectly.