I just got one of these in my area, and it seems like it would be such great fun! I don't have a family myself, but I can definitely see why this would be appealing to some folks with a big crowd of mouths to feed and not a lot of time. I'm planning on going with a few friends just to try it out sometime in the near future; I'll let you know how it goes...
http://www.supersuppers.com/index.php
http://www.supersuppers.com/index.php