To break it down, 2 REALLY GREAT results, 1 VERY GOOD result, 1 GOOD result (still in progress, some stones passed, but not yet healed of health problems. This person has had the most health concerns and is, I'm sure, going to require much further flushing).
0 problems, 0 trips to the doctor/hospital as result of flush, 0 regrets/complaints (other than taste of course).
I certainly can vouch for this group that Doctor Visits have varied from just treating symptoms, to denial of health concerns/treatment, to harmful and very painful - due to misdiagnosis, prescriptions and other treatments that failed to work. Of course the collective Doctor visits/treatments soared to $20,000 plus while the collective Flushes cost under $50.