I used to some what ignore them but the prequel-isms in the books post 1999. I read Survivor's Quest again recently. Its not a terribly good effort on Zahn's part to begin with, but the prequelisms which i must have missed last read through, i now really despise.
The wost part that Yoda taught Luke that Jedi were forbidden to love during his training on Dabobah. Nowhere in the movie. Zahn trying to harmonize the non canon sequel Eu storyline with the prequel film, its rubbish.