Better yet, i'm playing the full version.
I think i'm not overreacting when i say that this doesn't look like a completely new game at all, more like an RTW mod. The worldmap is an exact duplicate of the one in RTW, and so is AI movement and behaviour. The real difference comes to light on the battlemap, where of course there's completely different surroundings and cities, and of course units. Graphics look really good, but i'm not so sure about the accuracy regarding historically correctness and stuff, but i guess that's where the always happy to oblige modding community steps in.
Playing a campaign with England right now, and things are going pretty smooth, although those blasted Scots destroyed two of my armies before they seized to exist.
Most factions are locked until you manage to beat the CPU, which kinda sucks because really wanted to start off with the Turks. Ah well...i'll get there soon enough.