I've been to several revolving-sushi places before, including Kula in LA and one in Tokyo. I love the idea of KiKu, but the execution was a bit off. The selection was average to below-average, not in the sheer number of items, but in the diversity of the selection. For example, there seemed to be a whole lot of the same type of roll with a different topping, instead of changing up the ingredients of the roll itself.
The service was decent and would make you anything you wanted if it wasn't immediately available. I was surprised that there were only a handful of people there at noon, but happy that the selections still looked and tasted fresh.
Bottom line: it wasn't my favorite, but I would go back. I'm hoping for a slightly better choice of items next time around.