Considering how long The Lincoln is I didn't ride a whole bunch of it, but what I did ride was pretty cool. I thought it was interesting that although I didn't plan on riding The Lincoln, it kept showing up through out the trip. Route 66 on the other hand I have been planning for years, so it was finally good to get out and run it. I would not however recommend riding either solo. There are times when you will be 50 miles or so from ANYTHING. If I had broken down (on a Triumph? Please!) I would have been screwed. 100+ degrees out, no cell service and a road not often traveled on could be deadly. There were a few sections in Nevada, Arizona and California that for over 100 miles I didn't see a single car.
I am planning on doing it again in May/Juneish of 2008. Not sure what the itinery is just yet because I'm not sure what coast I will be living on at the time. It will likely be Route 66 from Chicago to Santa Monica, Highway 1 up to San Francisco, then The Lincoln all the way to New Jersey.
Should be fun!