This effect has a great impact on people if you present it correctly. This is a good idea, not new
at all, but still a good idea.
With also 30mn of explanation for a very simple move and the use
of a prop you certainly have at home. So, pretty cool.
But, here comes the problem of the
price. If I would have seen the full performance before buying, I wouldn't have bought this effect.
Because it is very easy to understand how it is done just from the performance if you have some
experience with magic. And 30$ for just a "secret" move like that, with the use of a trick deck, and
let's admit the input about the deck switch was not so bad --> meh...
I would have rather see it
in a compilation book about this kind of special deck, or at least at a lower price.
Summary: the idea is cool, but I didn't learn anything with this purchase because I already used
a similar idea. I was expecting something else maybe, and it is a bit expensive for what it is