I don't see much around here about Van Haitsma Literary, and there isn't much on Preditors and Editors. According to her book list, she's had authors published with some of the big boys (Random House, Penguin, Simon & Shuster, HarperCollins, etc), some published with indie presses I like (Soft Skull, Unbridled), and then several as "eBook originals."
She says she represents commercial and literary, but not genre. I take that to mean the old "literary and quality commercial fiction."
Anyway, that seems like plenty to send a query off to her, but since the agency's only been around since 2010 and I haven't found 3rd-party yay or nays on the agent, I thought it was worth a Background Check.