Author here, To quote from the FAQ:

> Why did you build PGBackup?

> We were tired of constantly configuring a postgres replica for each (small) project. And then being pretty unsure if the backup would still be up-to-date by the time the primary server crashes.

> When talking with other postgres users about backups, we also found that primary and backup servers often run in a single data center or at a single (budget) provider. In effect, exposing these users to non-neglible risk of loosing database+backup.

There's some - obvious - challenges in getting new users to trust you enough to send them their database copy. At the same time, people host very sensitive data at (virtual) budget servers without thinking twice. What do you think?