....that it contains MSG or an artificial sweetener.
The GF says she doesn't like it, saying it is sweet tasting. I find that it hits the salt and sweet taste parts of the tongue at the same time which is typical of umami. I can't say I particularly like it which is odd for water because it should not really taste of anything. I would think they are all basically distilled tap water so the contents shouldn't vary enough for minerals to have an impact. Also, I find it the least refreshing water to drink if that makes sense.