Its very good in Single player.... Koreans Celts, Ottomans, Spain, Arabs, Vikings, Mongols, and Carthage. I think thats it...
Single player is improved with turn times seem faster, AI is smarter.
Multiplayer is good now that they have the newer patch out.... The initial and first patch were crud as far as multiplayer.
Turnless games can be probmatic with Lag.. But turn based runs well....
If you like the original then the expansion will please...
GOTO
http://www.civfanatics.com for more info.
Do you play?
What empire?
DoctorYo