ManticX is right
Fantastic game - up to a point. The game does not conform to the important rule of there being more than one way to be successful. Around wizard level 14 (for me) the game became an exercise in finding the exact right way to win. There was so little room for variation on strategy after that point it becomes a chore.
I also think there was too much choice with skills, or at least the choices were too expensive.
Too cumbersome and narrow to be truely enjoyable.