If you like sparkling beverages but are also health conscious, this is a must have. The flavors ninja offers are all healthy, some even containing a slew vitamins. The ease of access to guilt-free drinks is incredible. You choose your flavor (or flavor combination), choose the strength of the two flavors (strong mango, light cherry for example), and the level of carbonation on a scale from 1 to 3. You can also choose how much you want to make. The incredibly part is the Ninja Thirsti can make up to 24 oz, which is great for having company. The only downside is the flavor options Ninja offers are currently limited, however you can make a cup of sparkling water and add your own flavors to the cup, even soda syrups. I've had other carbonators, and the Ninja -- by far -- has the most ease of use, speed, and cleanup. Not to mention, the fizziness setting on max is CRISP.