Read this if you are already invested in Revelation Space series.

Good:
Familiar characters & locations show up.
Ties to the war on Mars, which is one of my favorite parts of the lore.
Story beats reminded me of a Culture series novel.

Bad:
Drawn-out midsection, rushed & unnecessarily complicated ending.
Aliens end up feeling mundane.
Not a viable entry point into the series, despite being advertised as standalone.