I did NaNoWriMo in 2010 and it was a great experience and produced a not very good genre novel about the first sentient AI’s inability to deal with humans and how the human race survived the biotech apocalypse. The “write fast get it done” format liberated me from the need to make sense. Let it rip!
Good luck.
Edit: the novel http://files.howtolivewiki.com/MOTHER_OF_HYDROGEN_NOVEL/inde...