Universal Trading System

Has anyone here ever bought and used the Universal Trading system, by either John Clayburg or the TTM Universal system, there is one other clone but I can not remember who markets it, one and the same thing I know except one is sold by Carter and the other by Clayburg. This system has been around for a long time, that in itself must mean something, and I have read various opinions on other forums but as yet have not actually come across any comments by anyone using the system. When I looked into it a few years ago it appeared to be a profitable system and I used to get the updates when I subscribed to John Carter´s site but that was a while ago.