Kaizen was my first AYCE sushi visit in town. I will say on the one hand, if I totaled up all my items as if I ordered ala carte, then I definitely saved money. Just beware that when they say $26.95, it's really more like $37 after tax and auto added tip.
I liked the spice on a few of my rolls but others came off as just average. The tuna poke was solid but it was the first time I've had that so I can't say if it was better or worse than other tuna poke. A friend I was with said this place had nothing on places in her hometown, which happened to be a fish mecca (Seattle), so it's a tough comparison.
The true grade of Kaizen is TBD as I continue to expand my footprint in LV cuisine.