yes, it is way worth it. just do what the site says to do. do it until you are successful with it. i found the experience to be one of profound rejuvenation, especially of the bowels. the salt is doubled because it is important to have enough salt in it so the laxative effect works instead of absorbing all that water and bloating.(in thailand, i would imagine the people are more hydrated and they have less salt in their tissues than we do so less tolerence to the salt)
if a person goes through that couple of weeks, i cant imagine them regretting it. myself and a close friend both loved it. i think it super hydrates areas that are hydrolically atrophied, if that makes any sense.