anyone tried Gotein??

I found this on the melting mama's page. anyone tried it? They say they are made from whey protein isolate and concentrate...

http://gotein.com/

My RD won't let us have any protein drink that has more than 20% of the RDA for vitamins.   She defines our vitamin regimen based on that amount at a maximum coming from shakes.   She says she had people doing meal replacements rather than protein shakes and they ended up with health issues from too much of certain nutrients that aren't flushed by the body.