Nice pack for France and more agitators
The downside of Paradox being so generous with their base-game updates is that if you're satisfied with the agitator mechanic as is, and you're not interested in more French content, then you may pass this up.
However, if you want more content for playing France, this has some neat event chains and journal entries, even as the developers promise to flesh them out more. For instance, the monarchy journal entry is a good concept, but it can come with more jockeying between the factions.
It's also cool to have some more historical agitators, especially the handful who spawn via events. It helps make the agitator pool more memorable beyond the randomly generated figures.
Oh, and the pack does come with a bundle of additional character interactions. If you want more political maneuvering, you can promote an agitator to interest group leader, opening the opportunity for them to become the head of state. That's more room for roleplaying, not to mention law reform.
Finally: my man Garibaldi is iconic. Make sure to invite him when he's in the neighborhood and put him at command.
So overall, after the devs give more polish to the French flavor, perhaps this would be five star. As is, take it with some rough edges.