I've never played a game in the Settler series before ; so you could say I took a gamble with Settlers 7 : Paths to a Kingdom...
I've been playing the game practically non-stop since I've bought it, the Campaign serves as an extended tutorial and the story line is reasonably interesting. I've yet to try Skirmish or Online games yet due to the lurning curve the game forces you to take.
The graphics are outstanding without the framerate suffering in due course ; and each building has it's own routine and animation - fights are also spectacular to watch at first glance, considering the developers have cartoonised the populace and army similar to the design of Battlefield : Heroes!
Once you've got to grips with the game ; you notice it's far different to any other RTS out there - yes you can probably rush with a military force and conquer lands, but in the same method you can bribe your way through the land or simply send fanatically church dwellers to convert the population. This differentiated the game for me - because the game runs a "each to his own" approach.
If you're new to the world of settlers, I suggest you purchase for this reasonable price - one of the best games I've bought in a long time!