OK. So, just finished it. Aside from disliking the overuse of characters from Aliens, I thought that was excellent.
The author clearly understood the main characters, and the expansion into their thoughts and feelings (or facsimiles thereof, given the artificial nature of Bishop) was well done.
Having not read the scripts in a long time, I enjoyed the story, and liked how it varied from the previously released comic and audio drama.
I'd be interested in other adaptations of unused scripts by Cadigan. I like her writing style.