I have been to the Markham KaKa location so I can compare these two locations. The menu is smaller than markham but the quality of food is a lot better. Fish was fresh and they don't stuffed their sushi with rice to make you full. I can also taste the vinegar in the rice compared to normal AYCE buffet. You can see they put in effort in making their food by pairing different fish with different sauce/ topping. their tataki are so good I didn't feel like I was eating at a buffet!
Yes, there is no iPad ordering but instead we got better service compared to normal AYCE, our waitress checks on us regularly and tentative when we have questions. One tip is even the menu is small, never feel afraid to ask! I was a bit upset about not having miso soup or seaweed salad since I always order those two in Japanese buffet. I asked my waitress and she smile and said she could make that happen even it's not on menu. So ask!
One downside is restaurant pretty small, so come earlier or make reservation ahead of time. I would come back if I am in the area again.