When I last month a new personnel had to leave to make me, I've tried the Perso-card with envelope directly at the town hall in this lay-card reader. Nothing could be read. It should be so.
Currently I use the shells for personnel, bank card and medical card. Plugging and unplugging is not a problem, but you have to pull a little. I think that's not bad, because I do not want my card just like that slip out of the shells.
After the negative reviews I've tried my credit card with relief printing. Goes with me easily out in the (used) Case and again.
The only "problem" now in summer when the heat is that the cases seem to stick inside. Anyway, I had to pull something Doller, to find out the personnel. But after that it went smoothly again.
Conclusion: Beautiful card holders who fulfill their purpose and were made in Austria.
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Addendum: 29/01/2015
I have ordered me another envelope. Apparently the company has changed the design. The quality is as before very good. Only the card no longer draws you through the semicircular punched out, but by sums up the sides. I can not tell you what I like better, and that makes more sense. But the card is also the new design securely and snugly in the sleeve, can be pulled out with relative ease. Dirt I had not yet situates between the card and envelope. However, I keep my cards on even in the closed purse, not loose in your pocket.