Really easy prefix delegations on consumer/small business links without configuration. End-to-end connectivity, rather than having to think at all about what w

Really easy prefix delegations on consumer/small business links without configuration. End-to-end connectivity, rather than having to think at all about what will one day be a "public server." Avoiding of crummy CGNAT. No more collisions between private addresses when a company is acquired or networks otherwise merge. Avoiding most of the annoyances of DHCP. There's more, but these are the ones that really resonate with me.