Designed to make owning and circulating cryptocurrencies as easy as using paper money, they are currently available in denominations of 0.01 and 0.05 BTC.
That's ~ 95$ and 480$.
For what are you going to use those?
And how are you going to get your change?
Moreover, the company says that its banknotes are equipped with high-grade EAL6+ protection for all cryptocurrencies. Irretrievable private keys prohibit replication of wallet and its assets.
So you can't extract the coins from the banknotes, and the only ones that can do this are the the ones issuing those....
It smells fishy, how can you be sure there aren't 5000 notes with the same address ?
This screams FIAT!!!!