Never used it, but you get what you pay for. I’ve heard some people say they wouldn’t want to use it with anything substantial. There’s just no sense in sacrificing UX on a cold storage device that holds your saving.

I personally love the nostr:npub1s0vtkgej33n7ec4d7ycxmwt78up8hpfa30d0yfksrshq7t82mchqynpq6j signer. Has camera, can have many wallets on one device, big screen, easily make several backups, etc. you won’t regret it. Great UX.

Cypher punks really like Coldcards though. They are great signers and have come out with some new options recently.