Olgar Shiverstone
Legend
I wouldn't mind a COMPLETELY OPTIONAL system for flaws. Then those who want 'em can use 'em while those of us who think it's a nice idea in principle but absolutely hate every single flaw system that we've ever encountered don't have to use them. Or allow them.
There has, to my mind, never yet been a flaw system for an rpg that I've encountered that isn't immediately easy to abuse horrendously.
What Jester said.
It's fine as an optional system, but there's a tendency toward unbalance and abuse that would have me cringing if this is baked in to the core rules.
If both advantages and disadvantages are purely roleplaying-based it may work, but what I've seen is a roleplaying flaw in trade for a mechanical advantage, and that way lies madness.