The biggest problem I have with it,and it doesn't effect the trick in anyway, but the holes are cut
in a haphazard way. They are off center. I look at that as if when made the person putting the holes
in didn't give a shit, just push it out the door. One other problem, a small one, the background you
need has to be thought about before doing it, in other words you just can't find any black surface
to use. The back of most phone case I've used are rough and you can see the difference. I probably
won't be using this much, maybe in a low light situation. The major complaint, it's too expensive
for what you get, but everything has gone up, so take that with a grain of salt.
My cards were okay as far as the cut holes and stickers go. However, the corners of the non-hole cards are worn away. Given that, I've decided to set myself up for making my own. Here is what I chose - both available at Amazon.
https://www.amazon.com/gp/product/B07QLNTG5B/ref=ox_sc_act_title_1?smid=A323SNUEHJJ6FB&psc=1
https://www.amazon.com/gp/product/B07SBJQDDZ/ref=ox_sc_act_title_2?smid=A2VIYIGMD19XOL&th=1