Freedom's Challenge (1998) by Anne McCaffrey brought an apparent trilogy to a close. Anne took three books to tell a story that any lesser or better author would have taken only one book to write.
I've spent a while trying to figure out why I care so little for the books, and so little for the characters these books. From my point of view, Anne skips over all the interesting bits, instead focusing on the uninteresting bits. Our lead character, Kris, is so forgettable that I had to look up her name. She does little worth talking about, is often left behind, and only later hears about all the interesting missions and development. We don't follow the story as it happens, we follow the story as it gets reported to Kris. This breaks any reader engagement.
Her best cat friend is Zainal, who I never built an affinity with. I don't care about him any more than Kris. So if I don't care about her, or him, or their relationship, then there isn't really very much to talk about with these books.
One bit about Anne's writing that drives me crazy is her childhood development gaffs. Perhaps her children were extraordinary, but most likely, she no longer has any idea of what children under 5 years old are like. These children have no relationship to reality. Don't base any of your ideas on childcare on anything that Anne has to say.
What aggravates me most is that there's a story in there, but she's not brave enough to tell that story. I see so much of what could be done with the setting merely by showing us the episodes that she tells us about. Show us the story, Anne. Show us. That's the interesting bit.
The entire series sails to easily through its own story. The characters rarely see any setbacks or plan complications. They make a plan, fret for a bit, then see the plan succeed. Anne shy's away from any moments of drama or doubt, which means that we don't see the characters tested to any large degree.
This book is no better or worse than the one before it. If you liked the last one, this one should work out fine for you. If you didn't like the last one, this book has nothing to offer.