Disappointment, honestly. Not because of Tom King, since writers haven't known what to do with her long before he came along.
She's just become stale and directionless. People have so much trouble reconciling Selina as her own character versus Batman's unattainable love interest, she comes off as schizophrenic more than anything, and not in an entertaining way.
Like most wayward characters, she just needs a writer who actually cares about her. Not her as a STRONK woman who don't need no man, not as Batman's lover, but her. Someone who wants to tell stories using Catwoman, not just a proxy for crime dramas. Unfortunately those writers seem few and far between these days.