More balanced than expected, but I do think you have to have an appreciation for Fernet to really enjoy it (although why would you have any to use if you didn't have some appreciation).

I also wonder if an adjustment - using a quarter ounce of it paired with an extra dash of bitters would work, maybe allowing for 3/4oz of the currently limited Green Chartreuse.

This is nicely balanced. Was a pleasant sipper on a Friday evening.