After moving here a few months ago the search has been on to find a decent sushi place in Phoenix, after all, it's Phoenix.  I don't set my expectation too high because I know how difficult it can be to get fresh sushi here.  
I enjoyed Moira because their creations are simple and they don't drown the sushi in sauce like some other American sushi joints.  Sushi is about the rice and the fish.  Both were pretty good here.  The salmon and the white tuna nigiri were fresh tasting and soft and the rice was great as well.  The kamikaze roll was also delicious, but maybe could have used a little more spice.
They have the best miso soup I have had since living in Japan.  Very tasty, not watered down or flavorless like most other places.
The drinks creations are fun and tasty, I went for the favorite karma.  I like my drinks like a like my women, spicy, sweet, and filled with booze.  Our waitress said she would even be open for a new creation if we gave her some ideas.
The service was great and friendly.  We were there on a Friday, but surprised it wasn't loud and bustling.  I can see how it could be at times as it is a little small.  Fun and modern decor, clean place!