Overall, I like the concept.
Overall, I like the concept. I have some concern about the card's physical durability. Will it withstand sitting on it and other shape-altering scenarios? Time will tell ...
My bigger concern, though, is its lack of integration with wallets and services, and its extremely limited set of supported coins. And even within the coins supported, having full support of all coin address formats (e.g., support all Bitcoin address formats).
Until coins coverage and support is increased, the card has limited usefulness. It's an early release, so I don't want to understate that it is a good start ... has potential ... just has limited usefulness in its current state ...