The advanced rules give you a whole new ball game, so much so that once you have grasped the basic rules, you probably wont bother with playing any of the early scenarios just using the basic rules. So far, I've only played single map games, and there are plenty of those, plus an additional pile of 2 and 4 mappers.
However, the magic aspect does add a fair bit to the playing time, and this will obviously make a huge difference if playing with multiple players - you can have up to 6 players each playing a Kingdom, or there are rules to provide for one person playing more than one kingdom. The scope of the game is huge.
It also takes up more room than is immediately apparent. Not just the maps, but the various play mats and space for cards.
Whilst it is basically a very simple game, there are enough nuances and depth to it to make for a very good game with lots of replayability.
“O Lord God, let me not be disgraced in my old days.”
'We few, we happy few, we band of brothers'