Was enjoyable during the early levels. But after a while obtaining the resources to continue expanding the airport or playing events gets so expensive in the game's "Airport Cash" or coin currencies that in-app purchases seem like the only way forward. Then there's some tasks that REQUIRE Facebook use. Bugs as well: tapping on buildings is sometimes ignored; runways are shown as busy even though the "allow" button works; planes are "ready" but not immediately usable. Uninstalled.