First this a great effect, practical in the real world. Not difficult but takes a bit of confidence.
There are a few issues that are fair to mention up front. The gimmick is made of a thick paper
and an elastic component. The paper won't last forever. I keep mine in a little yellow pay envelope
for protection. Also that is how I present the trick (something precious in it's own little
package). You would not want to jam this in a pocket with other stuff in it.
The elastic will
need repair at some point. Jason has very thorough instructions on the FB group about how to repair
and I think these are in the main instructions as well.
Many if not all of the gimmicks will
need a slight modification to open properly. Jason has detail and easy instructions for how to do
this on the FB group and it is a few seconds work. I can understand someone saying this should work
out of the box. It should. I think this is something that Jason was making for himself and some
compromises had to be made to have them massed produced. At any rate I totally get not wanting to
mess with gimmicks. In this case I made the effort for an amazing effect.