Got delivery from Arata while visiting a friend in Las Vegas. Ordering fresh fish in the desert is somewhat discouraged, but Arata came through with quick delivery, proper packaging, and most important: fresh food! I ordered a bunch of rolls and salads and everything was enjoyable. Prices were very reasonable, and the quality was quite high.
The selection is what you'd expect from a sushi restaurant in Nevada state. No Uni or Toro, but the rolls did not disappoint. I'd definitely recommend this spot when looking for some fresh sushi in Vegas.