Roka Akor Scottsdale is an extension of the celebrated Roka in London.
I attended the opening night and a follow up for lunch the following day. Overall, I was impressed with the offerings of fresh sushi, and robata grilled tidbits. The dish that really won me over was crab hot pot and the creamy rice was absolutely zoftik.
I drank many fresh sochu  infused cocktails, and crushed three bottles of sake with skilled Kikisake-shi, Sayaka Watanabe. This Japanese sake sommelier is London-based and the zuma-roka group sake trainer. They do have a fantastic sake selection. Easily the best in Scottsdale. She loved my sake brand I created with Midorikawa called Green River, and my low alcohol brand sake, Koide, as well.
They also have a great Italian Sommelier named Alessandro Marchesan, who is also based out of London. Too bad they are only loaner personnel from HQ in London.
The room is clean and beautiful with post modern Asian inspired lines. The staff is eager and young, but quite unskilled in refined service.  I am sure that will be a long cycle for the Roka management to fix. I have a dear friend who dined there on her birthday. She told me the service was "shockingly bad." She then reiterated that is was,  "so bad that it was entertainingly bad!" The food great and hopefully the service will match soon. Kanpai, Roka..kudos on your sake program.