I used a slightly modified version for my all girls class. Admittedly the first part of the class is a bit of a bore, since I wanted to teach them the vocabulary (monarchy, democracy...) for making their countries. Plus, I try to do it as an open class discussion, asking them leading questions so they will explain the concepts to me, but they almost never care to participate in this part, so it ends up being me lecturing to them. Then when we get to the team worksheet to actually create the country they do alright. Some of them could care less but other have a good time and come up with some interesting or really funny ideas. At the end I have the teams present their ideas to me, and I make sure they use full sentences to describe their country.
I'm still looking for ways to improve this lesson and get them more interested.