Is Hex worth it at high levels?

[notthegiant]

It's not worth it in combat. Now, the no-save disadvantage on certain type of ability checks (most likely Wis, for both Perception and Insight)? That's a different matter.

I'm laughing imagining someone casting Charisma-Hex on a noble or politician on the day of a big speech or debate and watching them stumble over their words. You could probably get some good money out of that if you're hired by a rival of theirs.