Summary: I would have given it zero stars if that were an option. After way too much time installing, un-installing, re-installing, and trouble shooting, the expansion pack does not work at all and has not expanded my son's original spore. I am now an hour in to chatting with their tech support.
Summary: It's a great addition to Spore, although it only lasts for a couple of hours. This expansion pack to Spore has so much potential, but I was so disappointed when I found out that it contains very limited amount of features and missions. I believe Spore players are better off without this expansion.