Does anyone here have experience with AirGap Vault/Wallet?

I'm looking to move away from my Nano X, but don't really want to fork out for another expensive hardware wallet.

AirGap looks like a pretty perfect solution. If you are not familiar with it, you install AirGap Vault on an old device with all connectivity disabled (i.e. air-gapped), and use AirGap Wallet on a connected device. Communications between the two are facilitated via QR codes, with Vault holding your private key and signing transactions requested by the Wallet app.

Just wondering if any of you are using this, whether you've had an issues, or otherwise have insight, and whether you would recommend going this route? Thanks!