It would be fine as an addition to a multisig quorum. For example, I wouldn’t use a Ledger or a Bitkey, personally, but a 2-of-2 of a Ledger and a Bitkey is probably good enough for mid-sized cold storage.
Discussion
yeah, that's the problem, i don't think it's advanced enough to do that. It doesn't actually show the seed. I need to dig into it more...