We now offer hosted Phabricator instances on Phacility. These instances come equipped with the various amenities and conveniences you might expect, except that we have written very smart robots to configure and maintain them for you.
This service is launching into open beta. Head to the admin console to launch a new hosted Phabricator instance.
If you're interested in the technical details of how the service is implemented, you can learn more by reading the Phacility Cluster Documentation.