I tried their calculator for four weeks roughly six months ago in the forex market and thought that it had value. The camarilla points are essentially "pivot points" and at times are uncanny just as are pivots and fib lines, and basic support and resistance lines. However if you go here on moneytec to the thread by jetheat called Mechanical Discretion and purchase his ebook of the same name for $10 or $20 (or thereabouts) you will receive a camarilla/pivot calculator within the ebook to own which is a far better deal than paying $179 per month to lease surefirethings and from my usage of both of them there is little if any difference between the two. Also with his ebook you also get some fundamental and useable trading strategies plus some valuable insights, and just try to beat that price. It should be noted that I have no vested interest in the ebook but I am simply sharing my experience here in order to maybe help someone by suggesting to keep your money in your pocket. The camarilla equation is not the holy grail but is indeed a very valuable tool to add to your arsenal, give it a try you'll be glad you did. My two cents. Basenji