Two words: Happy Hour. They have an awesome one that's everyday from 3-7 and all day on Sundays. Their appetizers, drinks, and sushi are all half off and there's a lot to choose from. I'm a big fan of their kinky kooler to drink. The pot stickers and teriyaki ribs are awesome. All of the sushi I've tried so far has been fresh and tasty.
There's a reason they call it happy hour, because it truly is the happiest hour of them all especially at Geisha. The music is rocking, the ambiance is cool, and the drinks are free flowing...err...maybe not free but half off is a pretty good deal!
If you want a decent place to sit, get there early as it gets really crowded from 5-7. This is a place I frequent while in Scottsdale.