Mm. I think Dini's lodged himself a little too firmly in the 'Charlies Angels' mindset for GCS, in that each of the girls is good at one particular thing, and for Ivy, it's interrogation, manipulation and kinda-sorta torture. She's got the sorta ice-queen thing going on and she's completely detached, I think. I don't get any of that warmth that I saw toward Harley in the DCAU, and I like to think that a woman in her position would have a sense of humour about what she can do, especially with idiot males tripping over themselves to get at her.
I do much prefer this version, although I think I'm a little bored of how serious mainstream comics in general are getting. Everything seems to be rape, death, war, these days.