>>929211It's more of a JR Central showoff warehouse and the train ride there quickly becomes a boring journey
Basically everything you read and see on wikipedia and such you'll find there. Maybe with some bonuses in terms of looking at old drawings of prototypes and such
If they run out of the popular bento, the food is kinda disappointing though so don't bother planning a full meal there
For the $10 to get in though, I can't complain. And if you're feeling particularly evil, stick a 10000 yen in the vending machine and it should spit out your change in 1000 yen notes. Makes life a little easier