This is as authentic as you can get for a classic "hole in the wall" Japanese restaurant. It is actually owned and operated by an Okinawan, so there is probably a bit more flavor in the food than what you would find in the Home Islands. It is a great value, and the cuisine is not "dumbed-down" for the macaroni and cheese American palate. If you want authentic Japanese/Okinawan food at good prices (lunch and dinner) this is the place to go.