I've been playing with it too. They kept it simple, and powerful. Can onboard people much faster along with their exchange and yet, still self-custody. Pin is good, but nostr:nprofile1qqsr70lh4keezkwy9s92zm2ncpyrh7l6647ly257n6fkfgcxws0t9ncpp4mhxue69uhkummn9ekx7mqprdmhxue69uhkummnw3ez6ur4vgh8xetdd9ek7mpwv3jhvv8qgp0, add biometrics support and native Tor! Not sure if the exit node will matter too if you disable the login to the exchange from a different country that is not supported yet through regulation.