The restaurant is a little on the small side, so maybe that's one of the reasons that they do not take reservations. We waited for about 20 minutes for a table which wasn't bad. However their restaurant is located next to the malls garbage compacters/pick up area... so you do have to live with the unpleasant smell while waiting for a table. We did not notice the smell once sat at our table.
The food was decent. They do have a lot of rolls on the menu to cater to western tastes. Their calamari roll was a bit small though (only 5 pieces if I remember correctly). The sushi were not bad either, similar freshness to any other restaurant in Calgary. Overall, it wasn't a spectacular dinning experience, but if you are at the mall and wants your Japanese food fix, this is the place.