I loved the idea of this item, the recycling aspect and the uniqueness of each item - really an awesome idea, and very handy.
My only criticism (and I'm really scratching around) is that it is quite difficult to use "out-of-the-box" - the rubber is still quite hard, and needs to soften quite a bit before you can easily get cards in and out.
Would also be great if the product info page mentioned how many cards it was designed to hold (maybe I'm trying too many?).
Great product, awesome idea, just tricky to use at the beginning.