I'll tell you what my problem with Zija is. If you google it the first page of results is full of the MLM/pyramid stuff.
I'm sure they gave you canned answer for the following question: if the Zija is so great, howcome it's not on the store shelves?
But can you tell me what great product was ever used as an MLM building mechanism and distributed same way?
I'm sure everyone noticed that while normally when someone on the forum praises a product it's usually accompanied with a link where the product was purchased. Your post didn't have that. Another red flag -- it's an MLM, stay away.
I realize this is sort of an open talk section of the forum, but the line has to be drawn somewhere, I don't believe there's a place for the MLM on this forum.