Smooth. The Benedictine & vermouth really soften the gin, without completely hiding it. Just made this with Beefeater and Dolin Dry. Mild gin up front, with sweet/honey/herbal notes on the backend. Nice option for a simple, gin-based aperitif/aperitivo.
Another recipe that invites tinkering with the proportions. I usually increase the base slightly in such "3 equal parts" recipes (to 1 oz Citadelle Gin de France here). This time, though, I also thought the sweet element deserved to be bumped back up a bit to match the vermouth (Cocchi Extra Dry) rather than just adding sugar, particularly since it adds a nontrivial amount of complexity to the drink. Final proportions were 4:3:3. An herbal treat.
Am in France and lucky to have a local wine shop who actually knows his liqueurs. Going to try this tonight and he recommended Vermouth Forcalquier - slightly sweeter and more of a honey style.