I'm not the greatest world historian, but I really like the Khmer's depiction. They aren't the most powerful, yet I really enjoy the feel of fulfilling their abilities- this sort of jungle builder civ replete with temples, lush farms and aqueducts... The domrey is a little bit of a disappointment to me, solely because siege is the unloved stepchild; and little can replace my enjoyment of the glorious Naresuan's elephant the siamese had in civ5. What a beast that boy was!
Picking the Wat building, maybe getting Feed the world too, it's very enjoyable games working around the terrain and their bonuses and matches what i think of when you see pictures. And Angkor Wat really meshes with the civ's playstyle, for turbo theming.
I really feel like egypt lost its magic this time around. Civ5, they had a wonder ability, a war chariot, and a cool UB in the burial tomb. Their current ability, is quite weak; the sphinx is pretty meh. I don't really find it as this cultural capstone improvement that it could be. It's a crappy pairidaeza with quite possibly the worst tech tree support of any UI. Cleo herself does the civ no favors; that leader ability is basically outclassed by the polish
sukiennice. Embarrassing. And, I know this doesn't line up with the current vision of more gender balanced game, but i would have very much preferred a Ramesses II leader. A Pharaoh. I'm a simple man; I click on egypt, I want to see the pharaoh hat. The fact that the civ is also totally outclassed in every way by their neighbor nubia is just salt in the wound. Better builder bonuses, better UI, better ranged unique unit.
Come on man.
Yeah the U-Boat is kinda weird. It's a naval UU for a traditionally land based civ and doesn't remotely synergize with the Hansa or Holy Roman Emperor. But overall the representation of Germany this time around is quite nice.
My sense is that they knew germany was getting some strong abilities so they gave the U boat to mix it up. I think if they had a Landsknecht unit they might be too HRE centric, and a Panzer tank replacement would be a blast, but they've had panzers for a while. I mean, if germany had something like this:
Landsknecht - replaces Pike&shot. Cheaper to build, and does not suffer penalty against melee units.
or
Panzer: replaces Tank. +10 strength vs other heavy cav units. +1 movement.
We would probably enjoy it a lot, but they might become too strong
I do like though, that they seem to have incorporated a number of elements throughout the long history of germany - frederick, the hansa, the "free imperial cities," a WW2 unit. I agree with another poster here that it's kind of fun to have spread out bonuses.