1a. Ease of use: I made it so easy that everyone in a family should be able to use it (not just the most technical person). And that includes multisig
1b. Ease of use: Automatic utxo management (optional manual utxo management)
  1. SyncTalk: collaborate on with others (in or outside the family) in a multisig https://bitcoin-safe.org/page/synctalk/