It should synergize well ability score wise, but not being super familiar with PFS scenarios I have to ask will you have time/opportunity to play up both halves of your character within society play?
Depends on scenario. The class generally is trying to fit a square peg in a round hole in PFS. I'm wondering if there is a better fit to use this race boon on?
I like Serpent Blooded Envenomed sorcerer and take the spell Pernicious Poison, personally but once you get into higher levels it will fall off even though your poison DC's scale with level, but hey then at least you're still a sorcerer.
They make great Bard's, Slayers, Rogue's, and Ninja's too.