I got the resto on my first Vet run - was extremely lucky.
However, it's pretty crap as it's broken in live and doesn't restore Stam to those in the healing springs as the tooltip suggests and is actually done by the distance from the caster.
I was really happy about getting this staff but I've switched back to using the Asylum resto. Pretty useless unless I completely shadow the DPS/Tank I'm trying to help out.