So, I'm getting around to trying out using the provided character sheet to convert a character from another campaign (level 14 barbarian), as an illustration for our GM about how a rebuild might work. I'm currently up to level 9 in the process, and I am already out of space in the Features & Traits section (even with minimal descriptions, no subclass details yet, and no custom stuff). And I see this is after expanding that section for space.
Also, assuming Developed Talents == Exploration Knacks (I seem to recall that being stated, but there is nothing in the book or character sheet to link those terms as being the same thing), there are only 6 lines available. While that works for level 14, a level 20 Berserker will have 9. And a Herald will get 7, a Rogue will get 10, and a Ranger will get 12.
Also, Combat Maneuvers has 11 lines. Again, that works for the Berserker and almost all other classes, but the Fighter can get up to 17.
Some of this is overflow that doesn't affect most classes, but the sheer number of traits and features that pile up from heritage/culture/background/class/subclass (plus maybe custom stuff per game, too) overwhelms that little box. It would be nice to have one extra page for extra features/traits/maneuvers/knacks. Doesn't even have to be broken up into sections; just "name: description" like the knacks section, for the whole page. Maybe a page # column, too.