I also am a WEN girl. I've been using it for about 3 years now. Love that I don't need conditioner and I think my hair feels thicker. But - it is pricey. I am going to try Ebay as suggested above.
I have a friend who can't use- I think it's the pomegranate. It caused large red spots on her scalp. The hairdresser thought it might be too acidic for her hair. She does use other kinds,of WEN without any problems, though.