Ultimately, I think the sound is the worst part of the game.  I actually like the music and don't mind that it falls on the ambient side of things (it's a strategy game, dangit, I want to think, not rock out!), but the sound effects are... too few and a bit uneven.  For some reason my rat-things (dipped if I can remember the name) are near deafening compared to the rest of everything else in the game.

However, there are other things I would rather see get attention at this point than the sound.