I have been to many sushi places in SP, Mori is my first pick for sure. Fresh fish, skilled sushimans.
If you're into fusion food, whatever that means, this is where you'll find fusion Japanese food. The big plus it's a fixed price to eat what you can. Dishes are elaborate and some are even tasteful. A little on the fashion side of Japanese food, that's you won't find Japanese people here. It's worth the try and price it's decent.