A great cheap game that can keep you hooked if you are willing to persevere through its difficulty.
I can understand why this game is rated poorly, as it is quite challenging, and the allegedly stupid AI will stuff you up. However I believe it is not the games fault and it is our job (as a survivor co-ordinator) to be able to guide them appropriately and efficiently.
To some it up get this game if you are looking for an Indie game that can enrich your life compared to the sea of DOW's, C&C's, and or Blizzard games you may own. This game may not be as flashy or fleshed out as these 3xA titles but for $10 one definitely gets ones moneys worth of gameplay