I am torn between three and four stars for this one, I lean toward three I suppose. This was not my favorite Reynolds novel by any stretch. I thought the science and science fictional ideas were brilliant as always. I found the characters and dialogue to be a bit too by-the-numbers for my taste. Oddly, the ending was excellent, vastly better than the majority of Reynolds' endings, and perhaps a harbinger or future improvement in the only area Reynolds consistently lacks in.
I didn't enjoy this as much as the brilliant Revelation Space series or even standalones like House of Suns or Terminal World. That said, Alistair Reynolds' books are consistently at the top of new science fiction. This one is not quite as good as is usual for Reynolds, but still well above the average for the genre.