As Barry says, they do a free trial but as the software takes some time to get the hang of I do not think there is enough time in the trial to get used to how it works AND see IF it works!
I would not particularly call this 'Black Box' software because there are no automatically generated buy and sell signals (at least not in the version I saw 6 months ago).
I do know one person who has been using the software for a year and has had very good results but he needs to spend quite a few hours a day working with the software and it took him literally months before he got to grips with it enough to be able to trade.
Regards,
Chris