Cuvex Seed Storage - safe?

Hi!

Wanted to know your opinion on the Cuvex device to store wallet seeds offline on a digital card. It seems legit and secure but since the seed is so important I would like to hear what you guys are saying.

Is there any third-party test of their open source software? I would like to avoid a long-tail honey-pot, if that makes any sense.

Link to their website:

Note: I have, of course, steel storages of my seeds but I would prefer a card secured by a password since it is difficult for me to protect the steel storages.

Thanks in advance!