Hands down this is the best Disney park. We were so excited to take our kids here! Not only do they love animals (especially Grace) but it's such a neat experience to "travel" to different parts of the world. (The food is also awesome there, by the way.)
Is it exactly like being in another country? No. But it's much cheaper than going there, you get exposed to lots of amazing animals and environments, the staff is friendly and knowledgeable, and I think it can really inspire kids to want to explore the world someday.