I have never read anything by the Robinsons, but I've heard many good things. John Scalzi wrote some very kind words about Jeanne, which gives me the sense that she was not only a talented writer, but was also a wonderful human being. She was apparently at work on a film adaptation of her novel Stardance. Hopefully we will still see it hit our screens in the future.
My condolences to Mr. Robinson and his family. Jeanne will be missed.