In all honesty this is more of a rogue/fury warr wep because of the +sword skill. Yes is does have the parry but just get your guild to make you a black guard which is better. Also the +sword skill for threat is bogus just because all the tanks in my guild say they have no problem keep aggro with their quel,blackguard, or spineshatterer. (which is why thunderfury should go to a rogue or dps fury warr).
So really from what our tanks tell me is that they would rather have stam etc than this weap. Still Don't get me wrong it is nice for tanking but there are better that are easier to get. And to the post above dude I have 4.5k on my ROGUE so really get some gear. Also wouldn't it be nice to have more health when you DONT parry.