Maintains performance

The product works as promised. For longer workouts to less fatigue, as well as in other isotonic drinks if you splashing around caffeine consumption or not, is sometimes debatable.
The taste is great, it tastes like what it says. Moreover, it is not too sweet when it mixes in accordance with the preparation instructions.

With great effort you but the drink still need additional carbohydrates (gel, powder) because the mainly water and minerals loss covers, but not the energy consumption. This is good in normal training, because it decreases the drink while playing sports and burns fat. At competitions, therefore it is recommended in my experience in addition to take carbs.