The stories themselves are excellent -- and varied. If you haven't read The Three Body Problem yet and want a taste of what it's about, The Circle by Liu Cixin will give you a lot to chew on. My favorites were Folding Beijing and Silent City. Both deal with authoritarianism, though with vastly different outcomes.
The three essays at the end highlight what was inescapable for me as I was reading it: these stories are really good science fiction, but don't strain yourself trying to find the theme or themes that makes them uniquely "Chinese". If anything, stories about modernism, technology, and "progress" gone haywire were applicable to modern American life, and we're better served seeing this collection as a marker of our shared era, not its country of origin.