No. Lots of sugar. Smart water *sounds* like it's healthy but it's not. One bottle has 7 teaspoons of sugar, even more than 12 oz bottle of coca cola [though I'm not saying that you should drink coke instead]. Plain water is healthiest. Crave flavor? Add a slice of lemon, lime, orange or cucumber. Make your own iced tea [flavored green tea or herbal tea]. Only thing smart about it: makes your pocketbook smart. Ow.
No. No. The only benefit is that the 'smart wanter' people get rich.