My buying hack for RTDs is to make sure that it is actual spirit in the can (or bottle) because many and even brand names are just fermented sugar water with more sugar water added.
One way to check is to see if the producer making the cocktail also sells spirits too. Which is the case for Big Yay!. They have a gin and a vodka. So you will be getting something of much higher quality.
From their current line-up, the orange aka Meyer Lemon and Gin and the green aka Pineapple, Mint and Rum sound the most intriguing and I do like the brightly lit colors.