I dunno man, I'm not sure I liked it. It felt really weird how the Squad just murdered ordinary, civilian guys and guards left and right and Waller didn't seem to care at all (or even try to take control of the situation). The tension between Killer Frost and the Sharkdude was kinda fun, actually. Harley was weird, very weird, but to be honest I'm not sure if Harley even is a character at this point. I don't remember what she was like in TAS, because I was 5 when I saw it, but some people say Dini and Timm created her so Joker had someone to talk to who wasn't a nameless goon. Since then I think the abuse angle with the Joker might have gone too far (with the infamous New 52 Suicide Squad Death of the Family issues adn whatnot) and definitely not in the right direction. I dunno, it's really hard for me to pin-point a defining characteristic of Harley other than eye-candy, but that's not being fair to her fans. I hope Messi can clarify this a bit. What's compelling about her other than her tits, man? Also, Viewtiful said Mad Love is his favourite Batman story, so there has to be something to Harley's character.
My man Floyd is still cool, though, so there's that.