I'll check it off the list to take you if you make it over here, Reg. I know some excellent places, but there is a lot of other good food, like MB's katsudon! I don't know what you have tried, but like anything else when it comes to food, there are different ranks of quality and taste, and priced accordingly. Sushi restaurants vary from cheap eating on the run where you don't even sit down, to where a rich atmosphere and lovely attendants in kimonos will be helping out with your needs, and leaving such places your wallet will be a lot lighter. Of course the fish has to be very fresh and the preparer skilled, and the rice good quality. The best stuff, anyone that doesn't like it, questioning their taste buds comes to mind.
Sushi wasn't originally intended to be a meal, by the way, possibly stopping in at a place to have it on the way back home from the public bath, and more something to accompany drink as a sort of complimenting snack. Food to accompany drink is a fine art in Japan. Ten years to get the hang of being a good sushi chef, it is said.