I'm half Japanese (on my mother's side) and also have lived in NYC (home of many of the best sushi restaurants in North America)...and from my perspective, the sushi options in Disney are bad to mediocre. The Mitsukoshi (or whatever the current name is) restaurant in the Japan Showcase in Epcot is maybe the best of a bad lot, but that's not really saying much...I found Kimono's in the Swan (or was it the Dolphin..) to be... well, pretty bad.. (lukewarm raw fish...yuck) the sushi at the California Grill is well... edible... (but for some reason we disliked the California Grill overall, except for the fabulous views)... Wolfgang Puck's... again just mediocre (and the plate had a faint smell of dishwasher detergent) and so on. Have yet to try off-site sushi places yet however. (Just in case it sounds like I'm overly picky...there are many other restaurants in Disney that I love... but none of them serve sushi )