After a couple "meh" experiences at other sushi spots around town, I have seen the truth, and it is Hori-san's sushi rice. I absolutely cannot bring myself to get excited about eating sushi anywhere else. Yes, yes, the fish is superb, impeccably prepared, and seasoned such that your soy sauce and freshly grated wasabi stare on longingly as you neglect them throughout the meal.
But that rice. So perfectly seasoned, juuuuust sweet enough, and never overpacked or structurally unsound. I honestly think you do yourself a disservice by ordering sashimi at Kata.
As far as I can tell, the play is to get an appetizer or two (chicken skewers 3 ways, miso eggplant, and the ceviche wouldn't be a bad way to go), and then ask for an omakase sushi from the chef with as few or many pieces as you feel like. We've done this both from the sushi bar and the tables.