The timespan isn't longer than in Shanji, but the changes to the characters are much more severe. Sometimes it can get confusing to go through such a long time in a single book, closely following a few characters...
Otherwise, just like Shanji, great world, great idea, well written, healthy dose of the paranormal/supernatural (both terms equally wrong, but that's how we know those things), and same (few, but nagging) differences of opinions between me and the writer, judging by some recurring ideas and choices that the main characters have and make.