This a fairly entertaining diversion to diversify your magic set. It elicits reactions of ‘oh,
that’s pretty cool’ rather than ‘woah, that blew me away’. It’s certainly no Little Door. What I
don’t understand is how or why this is a $40 trick. It just isn’t worth that kind of money - either
in the value of materials you get or the value of the routine you’re purchasing. It’s a very slight
piece of magic and a one-trick pony of a gimmick ( a fairly middling trick at that). If you’re
looking for bang for your buck, look elsewhere.