Intolerable.
The taste was almost intolerable, however, I drank it.  After three days, I was nauseated, vomiting and very constipated.  I stopped taking it and my symptoms subsided.  Tried it again because I really wanted it to work.  Same issues.  Tried to obtain an RMA to get the promised refund.  No help there.  Customer Service number did not accept calls at any time from 8am to midnight as their hours state.  Plan to keep trying to reach Customer Service.
Rating: 1 stars