Real great taste comes from ingredient i.e. matrrials what they use not from the only seasoning. They use bigger shrimp, prime quality of fish and best mayonneice. Even the eel sauce they use is home- made one they boil with plenty of real eel.
Their target is greater sales rather than cost reduction. Good quality, enough quantity and kind service are their main tactics. Prices are average ones prevailing over the city. Why shall we look for other place to enjoy sushi .