I read about this soda in this week's Time Out Chicago. I ran to WFM last night and picked up a 4 pack of lemongrass. They also have a kumquat and rhubarb flavor.
DH tried it and loved it. I hated it. It tasted like slightly flat sparkling water. I could neither smell nor taste any lemongrass. It is low-cal, 50 calories and again lacks any HFC which was one of the reasons I was interested in it. My husband was elated because this means more for him. He thinks it is delicious. Based on that, I would say Dry Soda is not for anyone who likes soda, even if it is HFC sweetened Dr. Pepper.
I definitiely will pick up more Vignette. I am more willing to try the Chardonnay now than I was prior to trying Dry Soda.