I finished up last night just a gnat's wing shy of 13k. After checking my records, I had over 18k on Day 4 in 2011 so it isn't a NaNo record.
This morning, I've written down a rough outline of what needs to happen on which day. I'm going to start doing the Michael Moorcock Five Days to Save the World thing pretty soon. So far, I'm feeling really good about the story.
I'm a little uneasy about not having enough juice to make it past 50k, though. I'm thinking about doing some chapters from other character's viewpoints to mix things up. Since I want to use the main character again, I'm going to throw in some hooks for future tales.