This is pretty amazing! If you're a campari fan, the espresso and Licor43 add a dimension I've not tasted before. The espresso takes a lesser role than expected but only so the Campari can be the star. Vaguely sweet and orange but only to support the bitter structure of the cocktail.
The espresso doesn't vanish but melds completely into the Fruity bitterness.

This will be on our list of weekend day cocktails. It seems related to the Negroni but lighter and so refreshing.