the narrator is not the worst I've ever heard but she makes absolutely no sense narrating a story where the two main characters are male. It grated. Also she speaks in what I think Brits call a posh accent EXCEPT for dialog which is all done with American accents, other than for Scotty, of course. Huh? To quote Spock, "Highly illogical." Brit pronunciations of common words detract from story comprehension for this American. There are occasional missing words.
Foster has written Star Trek episode and movie novelizations for something like 40 or 50 years. Great writing. Loved movie. Slogged through listening just because it cost me a credit and I liked movie.