Been there, done that. It is not bad at all, it is much better than it ever used to be. I would not take my bike over there though. If you do not want to store it for a year, just sell it and pick up another when you return. I left a newer sports car that I had purchased in my parents garage and they took care of it for me. When I returned home after a year, it was nice not to have to worry about transportation and what not.
They exercise a lot over there and the time will fly by. Make sure you get out and away from the base. If you get the chance, head down to Pusan as the coast is really quite nice. You can usually catch a hop to Hawaii as well, but be sure you have the leave in case you get bumped.
So much to do there, just enjoy it and time will fly by.