The fact that this trick is basically self-working (courtesy of the Olram Subtlety) gives it
immediate appeal, because it puts it within the reach of practically anyone, including amateurs
performing for friends and family. The main premise is a good one, and the concept of a lie detector
time-tested favourite in card magic. But it's the final kicker that especially has the potential to
surprise and amaze.
As for the instructions: my copy came with a physical DVD, consisting
of a little over 15 minutes of footage all up (plus some extras like an interview). These also
include some advanced handlings (think: Elmsley) for those looking for more. But the heart of strong
magic is that it needs to be entertaining, and being able to interact with your spectators with a
lie detector test is a time-tested plot that is a proven success, and that's really what this about,
along with the unexpected final revelation.