There's not really much I can say, but being able to play 8 extra maps along with the original two is really quite brilliant. All are suecessfully random, and all appear to me to be balanced. I enjoy playing them all whenever I have the time.
Food placement, gold, treasures, wood, etc, are all very nicely placed - particularly notable for the Native settlements and the trade routes.
And it works on the new demo too, which is awesome!