I know there have been some negative reviews on this product on some other sites, but I was interested in the gimmicks and how they worked. I can say that this product looks good and is quality made. I think that many in this field have too high expectations. I have never had any problems with this effect. It looks good close up and with a bit of practice is a great lead in to coin magic, if you so desire. This is also well taught and fun to perform. I would highly recommend this for anyone interested in poker chip or coin magic.