FWIW, this trilogy is a worthwhile read for SA fans and I'm getting the jones to cook up some cvilizations based on the Oubliette, the Sobernost and Zoku. Maybe I'll get moving on it now that work isn't eating my brain as much.
I enjoyed the first one greatly. I haven't gotten around to the others yet; do they move out of the intentionally lower-tech areas?
The Fractal Prince goes low tech-ish in the ruins of a nanotech ravaged Earth. Which means it's a mix. DI's, neural interfaces, etc., but not a functioning world. The Causal Angel has Jean and friends head to the Zoku in the outer system. It's high tech and it's weird. And I mean that in a good way.