I like the buzz of an energy drink, but I find that most are either too bitter or too sweet to be enjoyable.  Amp's Lighting flavored Energy Drink is nice and tart without being bitter.

At 220 calories, however, it won't be a regular part of my daily energy drink routine.  It's tasty, but not too sweet, and actually tastes like a real lemonade (most "lemonades" are too sweet;  as an energy drink, this Amp had the tartness that makes a lemonade a lemonade.)

If you've got the calories to spare and want a buzz, this is a great drink.  If, however, you're cutting down on your calories, there are plenty of low calorie drinks to enjoy instead.