I really like this mod, but there are some things that should be fixed.
The biggest and most important one is that if you start game from a later era the early
religions are missing and that's just not cool. I don't like much to play the first eras... When playing epic speed i put 2-20k advanced start points to get boring start off (still i wanna have early wonders and religions..).
Actually there is also another problem with gameplay. I like that epic speed, but now it's not that fun to play because there is no
multiple production (used to play PIG mod). And grinding early techs with marathon is sooo slow... :/ My first game with monarch went pretty easy and i started to build my best cities better. 1800 ad i had cities with 1.1k money 1.1k research and 700 production when building military units (those were different cities). And they were still growing well. Because of that more than half of my capital's production was wasted when building military.
Then there are the graphics. In my opinion part of them look dirty and unfinished, especially the
grassland is ugly. And the starting screen! In original BTS it looked classy and clean. Now it has sharp edges and pixels with bright unmatching colours. <--no homo
Then just out of curiosity. The Barbary Corsair is pretty overpowered I think. It's quite easy to get even on immortal and then kill some triremes, put great general to command it and dominate the seas the rest of the game. I even ran out of promotions

Its pretty fun still and luckily computer can't use it properly. It need some privateers as emergency backup when raiding capitals. So it's not an issue.
There is now so much good new stuff that its easier to point out the things i don't like. I'm going to play this mod more but if you could fix the religions (and multiple production) it'd be more pleasing =) Starting screen doesn't effect on gameplay at all so i'd not focus on that

And maybe i get used to new terrains.. Still I don't see why they had to be fixed because they were clear and good looking. I don't think civ should be that much about realism, its mainly math and strategy to me.