I really enjoyed the beginning of that book, but it had way to much fluff in it and I'd say I finished it in disappointment. Can't say I would recommend it.
It is definitely typical Kim Stanley Robinson in that it explores large ideas and delves into details that don't pertain directly to the plot. As a rumination on a possible non-dystopian future, it is excellent and I highly recommend it. The wandering plot and digressions into hikes in the Swiss Alps is also quintessentially Robinsonian. I loved it but you have to know what to expect.
So much this. I'm 3/4 of the way through and am really struggling to finish despite starting strong. I'm now skimming over the "policy" chapters and am focusing on the character action. Oh well, it's happened before with KSR.