Qralloq says:
7th Sea (2e). What a fantastic game, I loved the flow and the acrobatic system that allowed free-form stunts without having to predefine everything in the scene. The players roll, and then the GM can describe only what's needed for them to decide on how to spend their successes. i.e., "You can save the map from the ship's fire, but you'll take a burn: spend two stunt points to avoid that."
However.
Running the game, I ran into cognitive overload. Similar to some of the narrative elements of FFG Star Wars/Genesys, the narrative spends require thinking hard and fast on the fly to resolve each player turn, especially when they roll a ton of points they can spend. While I normally cherish the mental challenge, at the same time, I'm not always prepared to do it - everyone has a muddy-thinking day, and after staring at the players blankly for ten seconds thinking only of 80s cat food commercials, it's embarrassing.
Didn't help that my real life group has 5-6 players, so at any time there were a lot of successes between them. I've heard the system runs a lot better with a lower player count, but I'm not about to disinvite friends so the system runs better.