If a more acidic taste is preferred, substitute 5 ml Amaretto and 5 ml grenadine for 5 ml Cointreau and 5 ml lime juice.
If a stronger cocktail is desired...
This is just an easy drink to like. It's smooth, relaxed, and very easy to sip. I found it a skosh sweet for my palate, but not enough to keep me from enjoying it. Not every cocktail needs to be a flavor adventure—sometimes it's nice to have something that simply settles in and keeps you company. I'd happily make this again, but might experiment with the author's recommendation to "acidify" a bit. Or add a touch of something herbacious to give it a slightly different personality. Chartreuse anyone?