Following the tips of the other threads it was rather easy to get the game up and running. At first the tiles were gray, but changing the detail settings of to all other than the leaders to above the lowest made the game playable.
Only problem is that the terrain looks terrible.
The game seems to be 100% playable, and I've had no crashes at all.
I have only played the demo version, and not the full game.
This is on MacOSX using Crossover Games Version 9.1 (9.1.0)