Everything else aside, it looks like it has Rebiana (Stevia Extract) and Crystalline Fructose and Erythritol (Natural Sweeteners).
I'd stay away if you are trying to lose weight, but that's me. I try to avoid anything that runs the risk of taking me out of fat burning mode.
I question the quality of the vitamins in VW and what you even get out of it. I use to grab one of those post workout or even a G2 from time to time thinking it was helping me recover better than water. I doubt they do for short metcons with me drinking plenty of water and a solid meal post workout. For a long hike or something I'll still grab one. Lately I've been cranking a lot of seltzer (which by the way seems to be cheaper than plain old water at the store) and decaf peppermint tea.
Jimmy: Just because we need sugar doesn't mean we need the egregious 33 g of sugar in regular Vitamin Water. Who was arguing we don't need sugar anyway? The amount of sugar in the standard american diet is just way overboard from what we need. Not to mention, not all sources or forms of sugar are the equal and Vitamin water is a horrible source of sugar. My understanding is that sugar naturally occurring with fiber, e.g. fruit, is ideal. You should think twice before embarrassing yourself by spouting off such simplistic unsubstantiated straw man and ad hominem attacks to your fellow Paleo Hacks.
In my experience, that stuff always made me extremely hungry within ten minutes of drinking it. That's just with the VWZero stuff. The regular vitamin water didn't give me that hungry feeling, but it does have the 30+ g of sugar.
GunK: Firstly, welcome to the journey. I also get bored with water, but the choice options seem very limited. But there are a few, and these are what I turn to...
1) Coconut Water (but you have to be careful not to get stuff with added sugar; Amy&Brian brand is a good choice)
2) Tea (I like the many herbal choices out there)
3) Coconut Milk Tonic (yummy if you drink it warm in the evenings; Method #3 on Paleo Mama blog))
4) Kombucha (fun to say, fun to drink, an experiment to make)
5) Kvass (again, an experiment to make, but might be similar to Vitamin Water Zero)
6) Mineral Water with Lemon or Lime (this is my "go-to" drink; cheaper than Vitamin Water Zero)
I hope this helps.