Definitely related to a whiskey sour, but the Strega and Nonino bring more sweetness and a lot more flavor. I like this better than a baseline sour, but it still isn't something I'll likely order unless I am seeking something with Strega in it.

Excellent - tequila and lemon are the most prominent, with the Aperol (I actually used Luxardo Aperitivo) giving just a bit of citrus and a grapefruit impression. The Meletti sneaks in just at the end - watch for the distinctive Meletti taste just as the flavors fade away.

Delicious margarita variant as written, but maybe too sweet for some. The Aperol (in my case Luxardo Aperitivo) is important to give color, but doesn't register on the taste. Pineapple soda kicks up the sweetness a bit (and in my case contributed to yellow color of the cocktail) - I would probably could cut back the agave syrup by 50% (or eliminate altogether).

I tried and didn't care for this - coconut was surprisingly prominent (given the recipe ratio) and presented bitterness which I disliked.