I'm annoyed that Fencing Grace only works on light/piercing weapons, but Finesse Training works on anything compatible with weapon finesse -- so if I want to add my dex bonus to damage, I'll have to go rogue for 3 levels. My character probably would have been better off with a rapier, but the elven curved blade looks cool, and looking cool is more important than stats, right?
Interestingly, I found that if you have the exotic proficiency for the dueling sword (the same that aldori dueling masters use), you qualify for Finesse and Slashing grace, which completely replaces Str with Dex for both attack and damage bonuses.
Even more interesting, if you play the Sword Saint magus subclass, you can select it as your chosen weapon at level 1 and gain the full proficiency without the martial and exotic proficiency feats. There's even an exclusive "Aldori dueling mastery" feat. Considering the scenario, I can imagine those dueling swords being available in good quality too.
The only downside is that the dueling sword doesn't have the best crit range like the rapier (19-20 instead of 18-20), but it has a better damage range (1-8 instead of 1-6).
Sword Saint is pretty fascinating too, you only need Dex and Int and you don't wear any armor but you get all sorts of cool bonuses and gimmicks (and spells).
I'm actually considering restarting as a sword saint, because the eldritch scion has been really butchered from what it should be when they used the sorcerer bloodlines to replace the "bloodrager" stuff. For instance, the arcane bloodline (which I selected) has redundant stuff that overlaps with the magus part : at level 20 you get both "True Magus" and "Arcane Apotheosis". The first one gives you auto success on concentration check for defensive casting (like a touch spell) and the second gives auto success on all spell or spell like concentration checks... serious overlap, which happens because the devs were lazy (it also overlaps with the spell combat concentration bonuses from the magus part). The info text for eldritch scion is even using the word 'sorcerer' on the bloodline parts, you can tell that they copy-pasted the whole thing without checking.