I work next door and this is a popular lunch spot for us. They have a very good lunch combo which is reasonably priced and comes with a large portion of food made up of miso soup, a salad, gyoza, your choice of a sushi item and your choice of a grill item. I've had takeout from then as well, I'd rate the sushi itself as a 3.5-4/5 but the value for money solidifies a 4/5 rating for me.
It's a small place though so recommendations are a good idea or leave early to beat the lunch rush.