I think I got as far as I can/will. My last save game was turn 185; I had played till 200. Unfortunately my autosaves dont work, so I would have to stat 15 turns back if I wanted to pick up the game. I might still do that though, as the game was exceptionally good. You know that point in a game where you know you have everything wrapped up? I never got there
I played as Rome, large map, 8 civs, 12 CS, pangaea, standard speed. My government trial went Republic, Democracy, Corporate. I was really tempted to hit one of the Industrial Era techs for the production boom, but in the end growth won out.
Demographics
I was first in everything that mattered except for production (4th) and soldiers (7th). I have reason to suspect that I was only ahead by a slight margin, because every civ was well advanced and most built wonders before I could even research the accompanying tech.
Science
Same deal here: at times I felt I blasted through the techs. Interestingly though, each era actually felt like an era.
In terms of balance, the public school is overpowered. The turn before I built it, my capital was at 93 science. That jumped to 167 afterwards. I think 1 science per pop would be good; for my capital, I would have went to 130. Or something else would be to put it deeper into the science page as one of the dead-end techs. The player would have to make an effort to get there, sacrificing more prudent techs, but the rewards would be great.
For the branches, I found myself avoiding the Social page. The benefits for the other policies were much better for the game I was playing. The way I see it, Social is good in the beginning when trying to stay happiness possitive; once that stops being an issue, Social stops being a priority. Every so often I would go through and one-shot the techs just to make sure I had a healthy culture spread for my cities but that's it.
Gold
Seems pretty balanced to me. Yes, I made about 10K/turn right before I switched to Corporation, but the prices for everything went up to. That money actually went by really fast after upgrades, tile purchases (the lowest was 550), and rush-buys. No complaints here.
Production
Still love the pace. However, I noticed that chopping forest only give 15-25 production. In the later stages it isn't even noticeable. Unfortunately, the game crashed before I could get the production boost of Corporate.
CTDs
Some might already realize this, but the game crashes when you "see" more area too fast. When I was conquering the Spanish lands, I captured the capital, which made my game crash. When I zoomed in before the attack, everything was fine (I would advise not hitting the "View City" button). This is unimportant in the early game, but as the ai get more and more advanced, zooming in can save you a lot of restarts. Ironically, this is the reason why I crashed out.
Random
City-State quest give 50 influence, as do Great Merchants. Doesn't seem worth it when I can buy several hundred for a couple of 1000.
Already mentioned forest chops.
Boats still invisible. I looked at the code but couldn't spot anything bad there, and I know it's not other mods conflicting because I started a new game with only this mod and they still weren't there. Not game-breaking, but definitely irritating.