I have read her Gotham Knights stuff and much of it I just plain dislike.
I tend to find her like a decent fanfic writer (and I say that as a fanfic writer myself); she has a handle on some good character stuff, but it doesn't necessarily work as part of a long form narrative and is sometimes derailed completely (cf the Nightwing Annual she wrote, where Dick transcends Bruce levels of dickishness to be a complete and utter cold-hearted manipulative bastard, and not even a Magnificent Bastard).
Her focus on Dick's never-mentioned by anyone else ever Romany roots also comes across as forced. Look at her cack-handed introduction of Dick's "grandfather" in a story that required Dick and Bruce to have the combined IQ of a raisin... "Gee, this guy I never heard of shows up and claims to be my grandfather despite me having no memory of him in my entire life. It's just a shame that I don't actually own the circus I used to work at, and where many friends of my parents still work so that I could call one of them and ask if they have any knowledge of him. Oh, wait..."
Never mind that the explanation at the end made so little coherent sense that even Bruce and Dick comment on how ridiculous it is, it's also the story that has Dick Grayson's first reaction to a possible threat be to pull a loaded handgun. For that scene alone, the story should have been spiked.
I have to say it's her dealings with Dick which I particularly don't warm to. Her Titans run made him secretive and obsessive with his friends (Which Bruce might do, but not Dick), the "Letters to Batman" arc in GK which had Dick actually write that if asked to choose between the life he could have had with his parents and the life he had with Bruce, he's choose the latter. There might be a story to be built around that, but it just doesn't work as presented.
Plus, and I am aware of the irony here, her notion that Dick has so many issues because of his unspoken gay attraction to Bruce will never sit right with me. Dick is Bruce's son, and Bruce IS his father in every way that counts. Gay I naturally have no problem with, even notional incest I do.
Her "Bruce adopts Dick" story thing doesn't quite work for me because, post Zero Hour, it was said that Bruce HAD adopted Dick (since "wards" aren't really that common any more and a single man adopting a child was perfectly possible), except now he suddenly hadn't been, so he could be again.
#32 was I agree an excellent issue, but again, that's perhaps because it works as a series of charming vignettes rather than an ongoing story.
There are scenes in most of her stories I actually DO like, but they're not enough to counterbalance the rest of it.