Hello Edgers,
with a binary check what do you do if the player has a net result of successes/failures of 0?
What do I mean by that?
For instance, the player wants to charm some guards. She rolls 1 success, 1 failure, 2 advantages - so the net result is 0 but she has 2 advantages.
Strictly speaking, it's a stalemate. Because it is no failure I have a problem with saying: "Ok, so the guards don't buy your story (a failure on the check) but: what do you want to do with your advanges?"
What's your take on that?