We have started using the XSIBackup and so far, thing are looking really good!
There is one thing that I am concerned about though... My next test is on our largest host and it is connected to a SAN that is at it's storage limit. There is almost 300gb left on the SAN, however a couple of the VMs have VMDK files that are 3TB each.
My question is where do the servers/disks get cloned to? Do they get cloned directly to the backup-point location or on the same datastore that the VMDK file is on?