Tried the service for 2 months, not very good at all especially the derby, the guys don't have good suggestions, and the trading styles are not effective. Others in the derby also commented on it not being effective as noted by the fact that the narrator even read it to the group. Called and canceled effective the end of the month and they still billed me an extra month and refused to refund the extra billed amount of 167.00 dollars. You can get all of their features in the Think or swim platform except the derby and robo trader, so not really worth the investment