One of the great joys of cocktails is the making of them--a tiny bit of precision, a whole bunch of taste, quality ingredients, a modicum of physical effort. Bonus points for any witty bartender banter. Boom, you've made people pleased in less than 10 minutes. How often does that happen?
So I guess I'm not the audience for canned cocktails, and based on Zaddy's website that's certainly true--I go there and feel late Gen X old in a nanosecond. That said, the cartoon skeletons featured on their Corpse Reviver are right up my Halloween loving alley, so I have to admit they've got marketing down.
As for the drinks, they aren't bad, particularly if you aren't hoping they nail a full flavored, just shaken version. The 100 calories bit is appealing but not half as much as the 4% ABV. Sure, these aren't as flavorful as a regular cocktail, but they are playing one with mighty fist of alcohol tied behind their backs. Think of them as delightfully refreshing midday sippers that are easy to take to the beach or on a hike. Or just to your "why is it still so warm" backyard.
My vote would be for the Gin(ger) Fizz first, and not just because I'm a sucker for ginger's sweet tang. It works in a register that one could easily confuse for hard seltzer or kombucha, if not for that background hum of juniper thanks to the gin. And, yes, it's the Corpse Reviver I like the least, only because I'm so partial to the real one and there's no skimping on all its moving parts, even with fennel subbing for Pernod/absinthe.