I'm using it and I feel it's quite good. My feral is still leveling up to 99 so I'm not on the list yet but you can see me profile a couple of posts above.
Also I think BIS shoulder and pants would be the Siege of Ogrimar tier gear instead of the 10% mangle dot gear I have on, I just can't solo SOO yet.
Still gearing (cant find someone with damned volcanic shoulders on my realm) for prot, and havent fully upgraded my crafted gear because I've been upgrading my fury/arms sets at the same time (7 stage 3 items across the specs adds up to a hefty sum), but I've been trying out bonus armour prot again because even with the nerfs you can still get some decent AP out of it.
Prot/Fury: Grimrage @ Magtheridon - Community - World of Warcraft