I went to roll up an Elven Rogue character, and lo and behold I was unable to customize him fully.
For instance, there is an ability called "Corpse Eater" that I do not particularly like. Kind of hate it, in fact. However, I was unable to swap it out for something else.
It seems to me that these kinds of things should not be forced on us, especially given we can change skills around and such. More customization leads to more enjoyment for some of us :- )