Oh, well this is a change. Their highest offense stat switched from Attack to Special Attack (though the difference is only by 15 points, you could play a mix set).
The only differences I can see is that Dark Pulse (which normal Persian also got by TM), Quash, and Snarl was added to its level-up (EDIT: And Parting Shot which is significant). Sadly it doesn't get a move to help its defensive capabilities now that it gets Fur Coat, though it does have utilities like Fake Out, Taunt, Hypnosis, Spite, and the mentioned Parting Shot. Also, since it doesn't get a Special Normal-type move above 60 Power a Special set may still prefer Technician (which would also work well with Snarl)(EDIT: Keep forgetting these two are pure Dark-types now). But with it higher Special Attack it can make some use of Power Gem, Thunderbolt/Thunder, and Shadow Ball (and one with Technician might do better with Snarl than Dark Pulse).