The food really is the main thing, so it’s a quick order, quick service, and a quick, slurping meal at most ramen joints.
While you can expect great-tasting noodles in Japan’s ramen restaurants, you generally shouldn’t expect all that much in terms of special ambiance.
Instead, he’s reenacting the The World Stand Cry of Dio Brando, archvillain of JoJo’s Bizarre Adventure whose signature superpower has achieved worldwide meme status from his repeated cries of “muda” (“it’s worthless”).
Customer reviews on Japanese restaurant site Tabelog are positive, and photos of the food itself look powerfully tasty.