Played an Egypt game (love not having to worry about floods) and I don't know if I said it before, but I really dig the changes they made to amenities and the interaction between theater squares and entertainment complexes. Amenities were always just kind of there and not something to be bothered by except for the constant notifications that citizens might rebel (they never would). Sure, if they dropped too low your cities' output would be penalized, but even then there were always bigger priorities?
After the changes the penalty system is more nuanced, but you will receive the penalties sooner. So it's important you keep the amenities up, most easily through entertainment complexes/water parks. Luckily these now grant a major adjacency bonus to theater squares, which in turn makes it muuuch easier to build quality theater squares. Instead of having to wedge them in between two wonders, a government plaza and your city center just to receive a +5 theater square.
But even then amenities can be pretty damn hard to maintain. I ran all the policy cards that grant amenities (including New Deal) and every city had an entertainment complex. I even built the Colosseum. But in the end my cities were only 'content', and only barely in some cases. But I suppose that's the natural drawback to playing large.
Lastly I like how diplomacy is actually a viable victory method now, though I wonder if they didn't make it too easy. I was going for a science victory this game, but in the end I saw I was at 14 points with the Statue of Liberty yet unclaimed while India had just initiated an aid request. 30 turns later, I win.