I made this cocktail according to the recipe here, except that I used 50-50 lemon juice and lime juice and I added 3/4 ounce of sugar syrup. I thought it was a very enjoyable whiskey cocktail. And my wife, who's not always fond of whiskey, also enjoyed it. I think the addition of creme de cacao and bianco vermouth make this drink more of a crowd pleaser than the standard whiskey sour