Congrats! (If congrats are in order.
I finished my first "quick play" game last night. Even on a small map and at very low difficulty, it took 10-11 hours total over two evenings. Standard games will probably take WEEKS to complete!
The old options for micromanagement are still there, but really aren't necessary unless you're trying to specialize a city for wonder production or something. The new AI is superb when it comes to default placement citizens, and the emphasis wizard (for focusing on food/production/gold/etc) does a very good job.
The AI also did an excellent job of selecting new city tiles during border expansions. I'd placed a late coastal city and forgotten about it for a hundred years. When I came back, it'd expanded it's borders automatically to encompass all the resources in the area, including two straight lines out to the fish that were 3 hexes off shore. You can always manually buy tiles with gold though, if you're in a rush to get to the resources.
The opponent AIs were more lively than in previous versions. I'd just explored across the western ocean. As Siam, I was interested in establishing relationships with all the city-states (I was going for a cultural or diplomatic victory). Two of the city-states (Florence and Oslo) wanted me to off Venice. I was thinking "Two for one sale!" and invaded. Florence and Oslo became my allies, but India, America, and Greece were SUPER pissed. They wouldn't trade with me for the rest of the game. But the old +- indicators for your relationships are gone. Instead, you have to watch the leader's expressions, body language, and tone of voice to figure out just how they feel about you.
And they all looked so sad once I'd destroyed their civilizations...