Well let's see. For one I haven't read any fictions about Lune so far, bar 'Final Showdown.' But this was a well written possible insight into the life he lived after coming out of cryosleep, what he did and so on.
Plus there's the whole thing with Kara and her mother. Considering Kara's quite an embittered person when you meet her in Sean or Crys' quest, how exactly she came to be that way (or one possible way since it's never explained after all) is always good to see.
And...well I guess that's about that. I'll try and re-read it later so I can be a bit more detailed in the review.