It would be good to be able to have backup jobs failover to another unit.
Back when the memory leak issue was going on our primary appliance crashed while our secondary appliance, where the backups are replicated to, was operating fine. It would have been nice if the backup jobs failed over to the second appliance to ensure backups were taken successfully. After the primary appliance came back online it could take over the jobs and have the backups replicated back. Since the point of the backup system is to protect you from when a system fails it would be nice if the backup solution could be setup without a single point of failure.