This is a typical AYCE sushi place.
I've arrived in the middle of the afternoon, notice that you'll get -15% between 4 am and 7 pm.
The service is OK. You write number item on a paper sheet with a quantity, and waiters will deliver the item. The system is far from perfect, I've noticed that they'll forget to bring items. If I ask waiters about that, they will just tell us to reorder.
Coincidentally or not, missing items are the most complicated one. You pieces of sashimi or seaweed salad will arrive promptly. But no luck for sushi pizza and Dragon eyes!
Apart from this, you have a large choice of items, you can also have bowls of ramen, different fried rice, udon, teriyaki, seafood.
Expect to have items that won't be served without knowing why. You'll be full but it's just plain, nothing amazing. You have many choices of buffet restaurants on Saint Catherine Street. Just in the area, you have 3 other choices.