I love this mod and have been playing it consistently for months now. I have played as most civs and think the addition of the new Asian countries is great.
However, I must say Germany is insane! In most of my files they somehow manage to completely and utterly dominate Europe by the 1700s. At minimum, they stretch from Finland in the north to Turkey in the South, with Moscow typically being just on their borders. By the 1800s they'll have taken over France and the Netherlands. By the 1950s they usually control Central Europe, Scandinavia, France, Netherlands, Spain, the Balkans, Turkey, Italy, Greece, Mesopotamia, and Botswana or Zambia. AI Germany always wins time victory if I'm unable to pull off historic or space race (I've never seen them win space race. I think Bismarck is too obsessed with seizing every independent city in the world, that he fails to focus on winning the game
). The Germans are often at least 4-5 techs ahead of me, no matter what era or who I play as. The tech portion is accurate for the 19th and 20th centuries, I guess, but I not really accurate for the medieval age.
Other comments:
-The United States can be pretty wimpy. I don't exactly expect anything to be done about this since they've always been like this. They get trapped between the Atlantic Ocean and France or England most of the time. Whenever I play as US I'm able to kick the Europeans and Aztecs out of the US's historical area. I guess the AI are too afraid of having to go to war. I laugh at American exceptionalism every time poor, weak little Washington contacts me asking to trade cotton for uranium or oil.
-I still get cracked up at how the Chinese constantly switch between Mao and Cixi throughout the 19th and 20th centuries.
-Playing as Arabia is brutal! I build up a nicely sized empire, then the barbs, Egyptians, Seljuks, Mongols, Iranians, and Turks screw it all up. It'd be nice if they had slightly better production so that they can build some camel archers to hold off.
-The Mughals is a nice touch. I especially like how they often turn into Pakistan when the UK or Indians kick them out of India.
Edit: By the way, I'm playing on an older version. I downloaded the newest version earlier today, but wanted to give my comments anyway.