Speed of Dark actually troubled me, because although it was well written, writing from the perspective of an autistic person when she isn't made me uncomfortable. Although perhaps that was the point, and of course it's about time that a protagonist of a book wasn't NT.
But mostly, as a huge fan of old-fashioned space opera, I love her Serrano Legacy series. A huge expansive space opera over multiple volumes with the most kick-ass female characters.
I really need to read her Paksenarrion series too, as I am also a great fan of fantasy. I'm holding off in case I'm disappointed, but I don't now why I think I would be since I love all her other work.