Zanzibar holds up as well or better than Neuromancer. I recently reread both and Molly having a clock in her eye inserts really dates that one bit in Neuromancer, the chyron like news updates in Zanzibar call to mind todays social media sound/video bites.
It has been a million years since I read Stand on Zanzibar, but that technique of giving a set of cultural snippets to paint a picture really stuck with me. These days I'll be reading news headlines or Reddit's front page and be struck by how easily I could compose one of those that would be perfect for a novel imagining our era.
And it turns out a lot of people apparently have these "curtains for Zoosha" moments:
