I am very familiarized with AYCE sushi and Kuu definitely fall short from many aspect.
Food - Sashimi is ok fresh, except the saba, which was very mushy and falling apart. Fried items (eg. tempura and chicken wings) are not bad. However, most hot items are mediocre warm when they arrived. They have a ice cream machine which many kids enjoy it. A good place for family gatherings with kids.
Service - The servers know nothing about alcohol drink menu. When we ask our 1st server, she said "only soft drinks are available". When we asked our 2nd server, she said, 'yes we have beer', and we ask for a drink menu, she said there's no drink menu. We ordered a 220ml sake and it costs $11.99, very expensive compare to other places.
My partner and I haven't ate anything raw except the sashimi and we both have diarrhea afterwards. Mind you, we are from Asia and have relatively strong stomach and not easy having diarrhea. Ruined our night :(