I'm not a huge train enthusiast I just like tours and behind the scenes things. I really did like this. It's not a very expensive tour, they give you a lot of information (and depending on your tour guide some really funny stories, mine told how they are no longer allowed to throw fire starters at each other. LOL), and there is a nice little pin if you're in to that sort of thing.
It does happen really god awful in the morning, but then again it brings a whole new light to the MK before opening. We actually saw something you NEVER see, a modern car on main street. They even asked us not to take pictures as they never want a modern car/truck pictured on main street.