Update: 29 December 2016
We recommend all-you-can-eat restaurants to people who want to try as many types of food as possible during a short stay.
How it works
At an all-you-can-eat restaurant, you can eat all you want at a fixed price. Most of the time, you can pick the things you want to eat yourself rather than ordering through a waiter.
There are places that only allow you to eat for 1~3 hours, and there are also places without a particular limit. When you enter a restaurant or make a reservation at particular place, be sure to confirm which type it is.
Specialty all-you-can-eat restaurants
There are also all-you-can-eat restaurants that limit themselves to a particular specialty such as "all-you-can-eat sushi", "all-you-can-eat tempura", and "all-you-can-eat shabu-shabu (thinly sliced beef boiled in water)".
The language barrier is not a problem!
When ordering at restaurants overseas, language becomes a large problem, but this is not an issue at an all-you-can-eat restaurant. There is no need to order, and you can eat however much you want of whatever foods you like.
Sample foods you have never had before
Being able to sample the things you have never tried before is a benefit of an all-you-can-eat restaurant. There are no rules as to how much you have to eat at once, so you can just take a small portion to try at first.
*This information is from the time of this article's publication.