Huh! I took a look at its stats originally and thought
'..pft...I can make better...', but after reading up on it (and http://images.wikia.com/elderscrolls/images/5/5b/Saviors-hide-female.jpg it

) I think I need to go back and get it!
Soooo sorry Sid. You's gotsta die!Yeah, after saving sinding from the hunters (I used that opportunity to turn into a WW and start slaughtering all the hunters to give me a nice boost on my perk tree) I left..got the ring..you go back in after getting the ring, kill sinding and activate his corpse like you're gonna search it, choose yes to "Tear the skin from his body" or whatever it says..and Hircine appears again and gives you the other Hircine champion reward...in other words you're Hircine's ultimate champion/hound.
Hircine's ring and Saviour's Hide AND you possibly maxed out the Lycanthropy skill tree?
You please Hircine greatly.
I treat my WW transformations like how they were in Bloodmoon.
I HAVE to kill a humanoid and..eat his flesh when I turn into a WW to sate the bloodlust, if I kill enough people after sating the bloodlust, I please Hircine enough and he grants me a upgrade to my Lycan form..like how it worked in Bloodmoon granted if I recall Bloodmoon had special quests that gave you them but it is basically the same premise.
Bestial strength is like the buff he gave to your claws in Bloodmoon in my opinion, its just..it has 4 levels now. =P
In my opinion, when you max out the Lycan skill tree you become an Alpha Werewolf, doesn't hurt to be the leader of the other werewolves in the Companions.. =P
Go pup, become Hircine's greatest champion/hound!
...in your game.
>_>