BEST SUSHI in WAIKIKI.
I visited KAIWA last week and ordered several Sushi rolls.
Fistly I would like to say they are using best ingredients and local friendly. I've heard that Kona Kampachi is from Kona, Big island, all greens including salad menu is from local farm is named Nalo farm and then fresh Heart of Palm Sashimi, which was really tasty! is from also Big island and so on...
Their service is very polite like Japanese are.
However I also have to mention this if you are planning to eat there. It took a quite long time before eating. So if you have enough time, you'll really enjoy their service and food!