i do the trip 3-4 times a year and Andy is right, it is bloody hard work, very long days, hours upon hours sitting in traffic etc.
But interesting and fun if your a bike nut like we are.
Pretty amazing place, i came back the first time feeling like a very small fish (inconsequential even) in a bloody big pond (so to speak).
The japs still love the 2 strokes though, nice ones still go for good prices even at trade auction.
Mark