I was REALLY tempted to pick them, as they're extremely fun to play.  But in my tests, I haven't gotten my early-to-mid-game transition worked out yet, and they can't shine without a clear plan of how to succeed.  So far it mostly looks like:
1. Mass Amazing Infantry
2. ???
3. Profit!
 
I've got some ideas of ways to change my setup with them, but I'm not here to experiment, I'm here to chew bubblegum.  
