Before Early Access this game has to answer a key question.  We would like your input on this if we don't have a good answer, helping us make sure we implement such an answer.

QUESTION:  What does this bring to the Tower Defense genre? If I already have, and like, Defense Grid or Bloons or whatever, what does this game  do for me?

We have our own thoughts on this but since you are just getting into the game, how would you describe what we're doing to others who like this genre and what could we do to amplify that (understanding that this is a $10 tower defense game at the end of the day still).