The Civilization games are know for their turn-based game-play. This means that you have a number of turns within which to finish whatever you are working on, whether it be a building or a unit-type. This type of board-game effect can turn players completely off in some cases.
The interface and overall game-play is where the game is really polished; you can control absolutely any aspect of it, such as assigning workers via the city-screen, controlling taxes or choosing to focus on culture or productivity. You can in fact choose your own style of play, be it the despot or the peace-loving king.
Once again the advancement and success in the game is based upon being able to control units. You start your civilization with a settler and build a city to then generate warriors or workers, depending on what you want to focus. Then you need to discover various technologies to move through the ages and make your civilization the most advanced; this can occur through technology, culture or you can always wipe-out every one of your neighbours (if you are so inclined).
The developers have also replaced of some previous elements, such as riots and corruption for instance. These are taken over by a general health-system within cities, which makes for smoother and less complicated game-play.