Just "finished" the demo.
The demo was pretty effective... it got me hooked and right when I was really getting into it... boop! Demo Over!
Now I have to decide if I want to shell out $50 to play a game today I'll shelve when I dive into FFXIV tomorrow.
The game appears to fix some of my main hangups with past Civ games. I always hated... HATED the stack nonsense. I always wanted combat to be more tactical and more realistic. I also disliked how diplomacy was handled and how all of the other civs had horrible AI if you were actually trying to be diplomatic. It usually turned into me getting pissed at the AI and waging total war on them until every last city was razed to the ground.

*ahem*
Anyways... the game is good... It's definitely the best in the series.