I just finished Green Earth by Kim Stanley Robinson. It was too long.
Mainly I found it slow paced for such a long book. Although it is 3 books from a series melded into one, I still expected more.
There were some interesting philosophies and ideas. In particular the urban feral lifestyle, which I have read about online, and experienced some myself.
I didn't not like the book, but I won't be so eager for more by the same author.